You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please help me out in booking the ticket from MSP to HOU.

ASSISTANT: Sure, I am here to help you for this. When are you planning your trip?

USER: My trip dates will be Aug 31 to Sept 2.

ASSISTANT: May I know your name please?

USER: Dennis Adams is my name.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: At what time are you planning to depart and return?

USER: I am ok with any time.

ASSISTANT: Do you prefer any class?

USER: Economy.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry for inconvenience, no flights are found with your specifications.

USER: That's ok, thank you.

ASSISTANT: Thank you very much for approaching our agency.