user: please pick up the phone to rebook my connection!
agent: Steve, I am happy to look into this for you. Pls share your confirmation number for review. *HCA
user: Chv634. Local staff useless. On hold on phone...
agent: The confirmation number you've provided doesn't seem to be working. Pls double check and resend it. *HCA
user: I'm now sat on a flight to Paris. Where I will wait 8 hours to get home 12 hours late. Will be avoiding Delta wherever possible in future.
agent: I'm sorry to hear we let you down. Please know this is not the experience we wanted you to have with us, and I regret any inconvenience caused. We pride ourselves on providing service from the heart, and it is very disappointing to hear you’ve received anything less than... 1/2 ...our best. *HCA 2/2

Customer complaints about delay in flight. Agent request customer to double check and resend the confirmation number for review.
### Instruction: Below is a conversation between a human and an AI agent. Write a summary of the conversation.

### Input:
user: please pick up the phone to rebook my connection!
agent: Steve, I am happy to look into this for you. Pls share your confirmation number for review. *HCA
user: Chv634. Local staff useless. On hold on phone...
agent: The confirmation number you've provided doesn't seem to be working. Pls double check and resend it. *HCA
user: I'm now sat on a flight to Paris. Where I will wait 8 hours to get home 12 hours late. Will be avoiding Delta wherever possible in future.
agent: I'm sorry to hear we let you down. Please know this is not the experience we wanted you to have with us, and I regret any inconvenience caused. We pride ourselves on providing service from the heart, and it is very disappointing to hear you’ve received anything less than... 1/2 ...our best. *HCA 2/2

### Response:
Customer complaints about delay in flight. Agent request customer to double check and resend the confirmation number for review.