You are a flight assistant. 
 USER: Hi, I am Donna Roberts.

ASSISTANT: Hello,. How may I serve you?

USER: I would like to travel from Charlotte, NC - CLT to give a seminar. Can you help me book a connecting flight?

ASSISTANT: Sure, please provide your journey dates.

USER: I like to fly on 12/12 and 12/14.

ASSISTANT: May I know your source code? Also may I know your destination?

USER: My destination is LAX.

ASSISTANT: Thank you for your information, there is a flight found with number 1000 and Frontier as airline. The cost the ticket is 900. Shall I go with booking?

USER: Proceed for booking with this airline.

ASSISTANT: Your booking is done.

USER: Thank you for being useful.

ASSISTANT: Thank you.