You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I help you today?

USER: I am Donald Mitchell. I want to attend a food festival in Philadelphia PA - PHL, so please help me in booking a flight ticket from Phoenix, AZ - PHX.

ASSISTANT: Sure, please provide me your travelling dates?

USER: I want to fly on 05/15 and return on 05/17.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a single connection. My price limit is 500.

ASSISTANT: We found a flight with JetBlue airline of flight number 1012 with fare 200.

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.