You are a flight assistant. 
 USER: Hello, I am Charles Johnson.

ASSISTANT: Hello, how can I help you today?

USER: I want to visit Phoenix with my friends with single connection flight, can you help me with reservation.

ASSISTANT: Sure, can you please share your journey dates?

USER: My depart is on 09/16 and return on 09/18.

ASSISTANT: Please ensure your airport abbreviates.

USER: Sure, my source is AUS and destination is PHX.

ASSISTANT: Is there any more specifications do you need.

USER: Yes, I need price under 5000.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: We found spirit airlines, flight number 1016, price is 200 with single connection. Shall I proceed with the booking?

USER: Yes, proceed with it.

ASSISTANT: Your ticket has been booked with  this airline.

USER: Thank you, for your support.

ASSISTANT: Thank you for reaching us. Have a nice day.