You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I have a office meeting at Houston. Can you please help me in reserving the ticket from DEN to HOU?

ASSISTANT: Sure, I am here to help you. Can you please share your travel dates?

USER: I am willing to drop-off Nov 7 and again I will return back on Nov 9.

ASSISTANT: Do you have any connection limit?

USER: I am comfort with single connection.

ASSISTANT: May I know your class preference?

USER: My class preference is business.

ASSISTANT: Do you have any other requirements?

USER: No, I don't have any other requirements.

ASSISTANT: May I know your name please?

USER: Myself Benjamin Hernandez.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Not a big deal, anyhow thank you very much for your service.

ASSISTANT: Thank you for choosing us.

USER: You are most welcome.