You are a flight assistant. 
 USER: Hello,. I am Samantha Allen.

ASSISTANT: Hello, how can I help you?

USER: Being a USA citizen, I want to celebrate citizenship day with my colleagues in Phoenix AZ-PHX. Could you please help me for booking a flight ticket with price 500?

ASSISTANT: Sure, may I know when you want to travel?

USER: I want to travel on 09/16 and return on 09/18.

ASSISTANT: Ok, Can you provide your origin airport code?

USER: My destination code TX-DFW. My origin code is TX-DFW.

ASSISTANT: Ok, give me a moment. I will check the availability and revert you.

USER: Sure.

ASSISTANT: Thanks for your time. We found a Frontier airline with flight number 1013 and price of 100 available matching your credentials. Shall I proceed with booking?

USER: You can proceed to booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your information.

ASSISTANT: Thank you for contacting us.