You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Good morning.

USER: Jason Campbell here.

ASSISTANT: What can I do for you today Mr. Jason Campbell.

USER: I am planning to travel in a flight on 04/03 and 04/05, to meet my best friend. Will you help me?

ASSISTANT: Sure, May I know your location airport codes please?

USER: My airport codes are from LAX to AUS. I am looking for the price 200.

ASSISTANT: There is a flight found, but it cost is 400.

USER: No, I don't want to go with that.

ASSISTANT: Ok, can I help you with anything else.

USER: No, you have given enough information to me. Thank you for your support.

ASSISTANT: Thanks for reaching us, have a nice day.