You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you for today?

USER: I am Pamela Lopez, I am willing to travel Houston for seeing its art and culture. So, please assist me to book a flight ticket from Phoenix, AZ - PHX.

ASSISTANT: Sure, can you help me with your destination airport code?

USER: Sure, my destination airport code is TX - HOU.

ASSISTANT: May I know your travelling dates?

USER: Sure, my travelling dates are 01/08 ad 01/10.

ASSISTANT: Do you have any other requirements?

USER: Yes, I can afford only 200. Can you please search me a flight with such a price limit?

ASSISTANT: There is a flight-1015 of AA airlines, do you fine with that flight?

USER: Yes, I am fine with this flight.

ASSISTANT: Your ticket has been booked, have a nice journey.

USER: Thank you.

ASSISTANT: Welcome.