You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I be at your service?

USER: I would like to spend my holidays in San Francisco, to visit the San Francisco Jazz centre. Can you help me in booking my ticket within the range of 1000?

ASSISTANT: Sure, may I know on which dates you have planned to travel?

USER: I want to travel on 12/31, and need to catch return flight on 01/02.

ASSISTANT: Could you please share me your airport abbreviates?

USER: Source is from ORD. Destination is to SFO.

ASSISTANT: May I know your name?

USER: I am George Clark.

ASSISTANT: Thank you for the details, please stand by.

USER: Sure.

ASSISTANT: Thank you for your time, we found a flight in airline JetBlue with the flight number 1023. Shall I proceed to book?

USER: It is perfect, proceed with this airline.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your kind help.

ASSISTANT: Thank you for reaching us. Have a safe journey.