You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: George Mitchell here. Do you have any flight on 04/07?

ASSISTANT: Sure George Mitchell, may I know your travelling airport codes?

USER: I would like travel from IAD to DEN.

ASSISTANT: Do you have any return journey date?

USER: I want to return on 04/09.

ASSISTANT: Thanks for your details, wait a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there is a flight-1000 availability with connection 1 and price 100 of AA airline.

USER: Sure, you can proceed with this flight.

ASSISTANT: Your reservation is done with your name George Mitchell.

USER: Thanks for your help and great service.

ASSISTANT: Welcome George Mitchell.