You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Can you please help me in booking a flight ticket from HOU to SEA?

ASSISTANT: Sure, can you please mention your connection limit?

USER: Sure, I need a connecting flight.

ASSISTANT: Do you prefer economy or business class in your journey?

USER: I am ok with any class.

ASSISTANT: Kindly assign your depart and return dates of the journey?

USER: Sure, my travel dates are from Apr 16 to Apr 18.

ASSISTANT: Is there any more preferences?

USER: I would like to depart in the afternoon.

ASSISTANT: May I know your name please?

USER: Myself Frank Davis.

ASSISTANT: We found a American Airlines with direct flight, price is 200 in economy class, and your depart time is 19:00 PM. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved with 1018 flight number.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.