You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Larry Williams. Can you please help me in booking my flight ticket from HOU to BOS?

ASSISTANT: Sure, when are you planning to make your trip?

USER: Ok, I am planning my trip on Nov 16 and my return date is Nov 18.

ASSISTANT: Is there any airline preference?

USER: I am comfortable with any airline.

ASSISTANT: Do you need a economy class or business class ticket?

USER: I can fly in any class.

ASSISTANT: Ok, please give me a moment.

USER: Ok, sure.

ASSISTANT: Thanks for waiting, currently there are no flights going n your way.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for picking us.