You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you at present?

USER: I want to travel from Houston, HOU to MSP. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, Can you please provide your connection limit?

USER: I am looking for a direct flight in my journey.

ASSISTANT: Is there any class preference?

USER: No, I am comfortable to travel in any class.

ASSISTANT: When you are willing to travel?

USER: I would like to start my journey on July 01 and return back on July 03.

ASSISTANT: Ok, May I your good name please?

USER: Sure, myself Mark Clark.

ASSISTANT: OK, please wait for sometime.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you that, there were no flights found based on your specified details.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.