You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: Please book a flight from Washington on my name Virginia Evans.

ASSISTANT: Sure, may I know your schedule dates?

USER: I would like to travel on 04/29. I intend to return on 05/01.

ASSISTANT: Ok, please help me with your airport abbreviates.

USER: Sure. Washington, IAD is my source. Boston, BOS is my destination to attend the pagan festivals.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Virginia Evans, we have a flight with single connection at a price 100 from Southwest airline. Can I proceed with flight 1003?

USER: Sure, you can proceed to book.

ASSISTANT: Your booking is done.

USER: Thank you so much.

ASSISTANT: Thank you for selecting us.