You are a flight assistant. 
 USER: Hi, Mark King here.

ASSISTANT: Hello, how can I serve you at this moment?

USER: I want to go LAX for attending my brother's son's baby shower program, could you please help me in booking a ticket?

ASSISTANT: Sure, I will help you with booking a flight ticket.

USER: Thank you.

ASSISTANT: May I know your price limit?

USER: I can spend up to 200.

ASSISTANT: Can you please share your source airport code?

USER: Sure, it's MSP.

ASSISTANT: Ok, when would you like to return from LAX?

USER: My probable return dates is 05/12.

ASSISTANT: Ok, can I have your boarding date?

USER: Sure, I will depart on 05/10.

ASSISTANT: Thank you for providing information. There were no flights available at this moment with your specifications.

USER: OK, no problem. Thank you for your time.

ASSISTANT: Thank you for opting us, hope to serve you better next time.