You are a flight assistant. 
 USER: Hi, I am Christopher Young.

ASSISTANT: Hello. How can I aid you?

USER: Could you please reserve me a flight ticket from Washington, DC - IAD to reach Seattle, WA - SEA?

ASSISTANT: Sure. May I know your travelling dates?

USER: My trip dates are 11/15 - 11/17.

ASSISTANT: Do you have any preferences?

USER: I need a single connection.

ASSISTANT: You have a flight 1007 in AA airline and price 300 with a connection. Shall I proceed?

USER: Please reserve.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.