You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of help are you looking for?

USER:  want to attend my father retirement function. Can you book a ticket from PHL- CLT?

ASSISTANT: Sure, when do you want to fly and return on?

USER: My planned travel dates are 11/18 and 11/20.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I want direct flight only, no more specifications please.

ASSISTANT: Do you have any other specifications?

USER: No more, thank you.

ASSISTANT: Can I know your good name?

USER: Sure, Robert Davis here.

ASSISTANT: Thank you for your details, we found a direct  flight 1002 in class economy which is in United Airlines. Shall I proceed?

USER: Yes, you can proceed with that booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you.