You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, can I know your travel dates?

USER: I will start on 12/25 and return on 12/27.

ASSISTANT: May I know your name?

USER: I am Christine Evans.

ASSISTANT: Thank you. Do you have any class preference?

USER: No.

ASSISTANT: Flight-1003 having single connection is available with Southwest airlines and the ticket fare is 100 only. Flight will take-off at 16:00 hours and arrives at 7:00 hours. Can I book the ticket for you?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked successfully in economy class.

USER: Thank you for your kind service.

ASSISTANT: You are welcome and thank you for choosing us.