You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Melissa Lopez. Can you help me in booking on 12/16 to 12/18, as there is a musical concert?

ASSISTANT: May I know your desired airport codes please?

USER: My source is LAX and destination is ORD.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: You can reserve it.

ASSISTANT: Your ticket is booked, flight number 1005.

USER: Thank you for helping.

ASSISTANT: Thank you for opting us.