You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name?

USER: My name is Kenneth Lewis. I have an examination in Oakland, so please book a flight ticket from IAD to OAK.

ASSISTANT: Could you provide your travelling dates?

USER: My travelling dates are 01/17 and 01/19.

ASSISTANT:  I have found a flight 1011 with 1 connection limit, costs 100 from JetBlue airlines.

USER: Ok, then proceed with the booking.

ASSISTANT: Shall I proceed for the booking?

USER: Yes, please.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you so much.