You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm Christopher Taylor. I am planning to visit Houston zoo, could you please help me with booking a flight ticket from SFO?

ASSISTANT: Sure, can I know your travelling dates for searching?

USER: I would like to take off on 01/18 and return on 01/20.

ASSISTANT: Please help me in providing your destination airport code?

USER: My destination airport code is HOU.

ASSISTANT: On whose name that I want to book the ticket?

USER: I already mentioned above.

ASSISTANT: Based on our search in our data base, Spirit airlines is available with a stop connection of 1, can I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: Taylor, your ticket is confirmed with 1013 flight number. Thank you for your valuable time in reaching us.

USER: I really appreciate your help, thank you.

ASSISTANT: Have a nice day.