user: hello can you please tell me whether I can use this pass for Warrington to euston train on Saturday?
agent: Hi, we do not run from Warrington and they are only valid to use on London Midland services.
user: Would lime st to London Euston be best bet? I struggled to find details for your service online, do you have a list of stations?
agent: you can go from Lime St. There will be a change at Crewe or Stafford or you can go via Birmingham New St as long as it's with us!
user: Thanks for the help? Do we need to purchase tickets or can we just get on train and show our passes to conductor?
agent: if they're our scratchcards just scratch of the number and month that relate to the date of travel and that is then your ticket
user: Ok yes they are scratch cards. So we can get straight on train then?
agent: yes, no need to book or buy anything else, just show them to platform &amp; on board staff as you go

Customer inquiring about the train pass. Agent suggest customer not to buy any tickets as the pass is enough for journey.
### Instruction: Below is a conversation between a human and an AI agent. Write a summary of the conversation.

### Input:
user: hello can you please tell me whether I can use this pass for Warrington to euston train on Saturday?
agent: Hi, we do not run from Warrington and they are only valid to use on London Midland services.
user: Would lime st to London Euston be best bet? I struggled to find details for your service online, do you have a list of stations?
agent: you can go from Lime St. There will be a change at Crewe or Stafford or you can go via Birmingham New St as long as it's with us!
user: Thanks for the help? Do we need to purchase tickets or can we just get on train and show our passes to conductor?
agent: if they're our scratchcards just scratch of the number and month that relate to the date of travel and that is then your ticket
user: Ok yes they are scratch cards. So we can get straight on train then?
agent: yes, no need to book or buy anything else, just show them to platform &amp; on board staff as you go

### Response:
Customer inquiring about the train pass. Agent suggest customer not to buy any tickets as the pass is enough for journey.