You are a flight assistant. 
 USER: Hello,. I am Donald Lee.

ASSISTANT: Hello, How can I help you?

USER: I am planning to attend a live music concert at Chicago, ORD, so can you please help me in booking?

ASSISTANT: Sure, May I know the source code?

USER: Source is from Oakland, OAK.

ASSISTANT: Please help me with your travel dates.

USER: I want to travel on 11/22 and return on 11/24.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We have found direct flight from AA airline. Shall I proceed?

USER: Yes, proceed with my booking.

ASSISTANT: Your ticket has been booked with the flight number 1022.

USER: Thank you for your kind response.

ASSISTANT: Thank you for opting us.