You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Joshua Brown. I want to travel from SFO to ATK, can you help in booking? Mt date of travelling is on 12/18 to 12/20.

ASSISTANT: Wait a moment please Joshua Brown.

USER: Sure.

ASSISTANT: There is a flight 1016 of Spirit airlines available for you.

USER: You can proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you  for helping me.

ASSISTANT: Thank you and have a great journey.