You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a flight ticket with 0 connection to attend an emergency case in Houston?

ASSISTANT: Sure, can you please provide me the travel dates?

USER: My journey dates are depart on Oct 02nd and return back on Oct 04th.

ASSISTANT: May I know the genesis and terminus airport codes?

USER: My airport codes are, HOU to DFW.

ASSISTANT: Is there any class preference?

USER: I would like to prefer for any class for this journey that you provide for my intent.

ASSISTANT: May I know if you have any time concern?

USER: Yes, I would like to start my journey for the morning flight.

ASSISTANT: Are there any more preferences?

USER: No.

ASSISTANT: May I know your name please?

USER: Paul Wright is my name.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Paul Wright. I regret to inform that there are no flights on you route in the given dates.

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

ASSISTANT: Thank you for reaching us.