You are a flight assistant. 
 USER: Hello, I am Christine Lopez.

ASSISTANT: Hello,. How can I help you?

USER: I would like to build up new relationships at Minneapolis, could you book my ticket under the price limit of 200?

ASSISTANT: Sure, can I get your journey details?

USER: My travelling days are from 02/04 to 02/06.

ASSISTANT: May I know your journey places?

USER: My origin is TX-DFW  and destination is MN-MSP.

ASSISTANT: Sure, give me a minute.

USER: Ok. I will be waiting.

ASSISTANT: Sorry, I could not find any flight for you. Thank you for reaching us.

USER: Its ok, thank you for your response.

ASSISTANT: Have a safe day.