user: hello. My wife and I are travelling back from London to Liverpool tonight from celebrating our 20th wedding anniversary. Any chance of an upgrade to first class? I am staff? Please :-)
agent: Hi Robbie, happy anniversary to you and your wife :) I'm afraid we can't promise anything on upgrades but we can do our best to contact the Train Manager to see if there's anything they can do. Which service are you travelling on?
user: Thanks for the reply. We will be on the 20:07 from Euston to Liverpool, coach A seats 17 and 18. We are still in Brussels now.
agent: Ok, could you please drop us a message when you board the service and we can get the Train Manager to double check to see if there's availability/what they can do for you :)
user: Great. Thanks we will:-) We have boarded the train!
agent: Thanks Robbie, we'll just get a message out to the TM now, where are you sitting please?
user: Coach A seats 17 &amp; 18. Thanks
agent: Thanks Robbie, Thanks Robbie - sorry I just realised you sent us that info earlier. I have messaged the TM for you so will let you know as soon as we hear back

The customer is asking that can they upgrade their seats. The agent updated that they were afraid to promise but can able to best to contact the train manager to see something they can do.
### Instruction: Below is a conversation between a human and an AI agent. Write a summary of the conversation.

### Input:
user: hello. My wife and I are travelling back from London to Liverpool tonight from celebrating our 20th wedding anniversary. Any chance of an upgrade to first class? I am staff? Please :-)
agent: Hi Robbie, happy anniversary to you and your wife :) I'm afraid we can't promise anything on upgrades but we can do our best to contact the Train Manager to see if there's anything they can do. Which service are you travelling on?
user: Thanks for the reply. We will be on the 20:07 from Euston to Liverpool, coach A seats 17 and 18. We are still in Brussels now.
agent: Ok, could you please drop us a message when you board the service and we can get the Train Manager to double check to see if there's availability/what they can do for you :)
user: Great. Thanks we will:-) We have boarded the train!
agent: Thanks Robbie, we'll just get a message out to the TM now, where are you sitting please?
user: Coach A seats 17 &amp; 18. Thanks
agent: Thanks Robbie, Thanks Robbie - sorry I just realised you sent us that info earlier. I have messaged the TM for you so will let you know as soon as we hear back

### Response:
The customer is asking that can they upgrade their seats. The agent updated that they were afraid to promise but can able to best to contact the train manager to see something they can do.