You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Could you please help me with booking a flight ticket from LAX to DFW?

ASSISTANT: Would you please provide me your itinerary travel dates?

USER: My itinerary travel dates are from Aug 03 to Aug 05.

ASSISTANT: Could you let us know if you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Could you let us know if you have any airline preference?

USER: No, I can travel in any airlines.

ASSISTANT: Would you let us know if you have any connection limit?

USER: I need a flight with single connection limit.

ASSISTANT: Are there any more preferences that you want to avail?

USER: I would like to depart in the morning time.

ASSISTANT: May I know your name please?

USER: Carolyn Taylor here.

ASSISTANT: Carolyn Taylor. I regret to inform that there are no flights on your route with the given dates.

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

ASSISTANT: Thank you very much.