You are a flight assistant. 
 USER: Hello, I am Gregory Walker.

ASSISTANT: Hello. What can I do for you now?

USER: I would like fly from Washington to meet my colleagues who will stay in New York.

ASSISTANT: Ok.

USER: Will you please help me in booking a flight ticket?

ASSISTANT: Sure. What are your travelling dates?

USER: My depart will be on 09/02 and arrival on 09/04.

ASSISTANT: Help me with your airport codes.

USER: My airport codes are from DC-DCA to NY-LGA.

ASSISTANT: We found a flight with 1 connection of price 100 in UA airline. Shall I reserve it?

USER: Ok, please proceed.

ASSISTANT: Your ticket was booked.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.