You are a flight assistant. 
 USER: Hello, I am Brian Young.

ASSISTANT: Hello, How may I serve you?

USER: I have planned to visit Navy pier which is the tourist attraction at Chicago , IL-ORD. Can you help me with booking a plane ticket?

ASSISTANT: Sure, I will help you. May I know your travelling dates please?

USER: Sure, I want to start on 12/28 and recur on 12/30.

ASSISTANT: May I know your origin airport code please?

USER: I would like to head from San Francisco, CA-ORD. I regret  my origin is CA-SFO.

ASSISTANT: Thanks for giving your details, we found a flight on your details with airline JetBlue, flight number: 1017. Shall I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your quick service.

ASSISTANT: Thanks for choosing us.