You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, How exactly I can serve you the best today?

USER: Myself William White.

ASSISTANT: Ok.

USER: Will you help me in booking the flight ticket from IAH to LGA?

ASSISTANT: Sure, we are perky to help you. Let me know your connection limit.

USER: Thank you for accepting my request. I need a flight with single connection.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am comfortable in any class.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My travelling dates are Sept 14 and Sept 16.

ASSISTANT: Do you have any other requirements?

USER: My depart time must be in afternoon.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok, I will wait for your response.

ASSISTANT: We found 1028 Delta airlines with single connection with economy class and depart time is 14:00 PM. Shall I proceed with the booking?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket has been reserved with price 200.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.