You are a flight assistant. 
 USER: Hello, This is Jason Parker.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket from Houston TX - HOU to Minneapolis & St.Paul, MN -MSP.

ASSISTANT: OK, May I know your travelling dates?

USER: Sure, My departure date on Nov 28 and return date on Nov 30.

ASSISTANT: Due you have any other specifications?

USER: Yes, I have a price limit 200 with one connection only.

ASSISTANT: OK, please wait for a while. I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to inform no flight found with your requirement.

USER: OK, thank you.