You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to travel from HOU to MCO for my business meet, can you please help me out with that?

ASSISTANT: Sure, please share me your trip dates.

USER: Thank you for accepting my request, my boarding is on Nov 27 and please book my return ticket on Nov 29.

ASSISTANT: Please share me your specifications.

USER: I would like to return in afternoon time.

ASSISTANT: Is there any class preferences for you?

USER: No.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Sure, my name is Michelle Smith.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for the information.

ASSISTANT: Thank you for opting us.

USER: Welcome.