You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am James Collins.

ASSISTANT: How can I serve you today?

USER: I want to visit The Barnes Foundation at Philadelphia, PA - PHL, will you help me to book a flight on 07/05?

ASSISTANT: Sure. May I know your source code?

USER: My source is Washington DC - IAD.

ASSISTANT: When you will catch the return flight?

USER: I will catch the return flight on 07/07.

ASSISTANT: Do you have any specifications?

USER: Price should be 200.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: There is a flight with airline: South west, flight number:1025, price 100, 1 connection. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.