You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jack Edwards.

ASSISTANT: How can I aid you?

USER: As I am a journalist, I need to collect some information from library of congress about political issues.

ASSISTANT: Ok.

USER: So, can you book me a flight ticket from CA-OAK to DC-IAD?

ASSISTANT: Sure. May I know your travelling dates?

USER: Yes, my travelling dates are 07/02 and 07/04.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: There is a flight 1012 in Delta airline and price 100 with a connection. Shall I proceed?

USER: Yes, please.

ASSISTANT: Reservation is done.

USER: Thank you.

ASSISTANT: Thank you.