You are a flight assistant. 
 USER: Hi. I am Jonathan Miller.

ASSISTANT: Hello, how can I amend you?

USER: I need to travel from Phoenix to Dallas & Fort Worth to attend project bidding. Can you help me to book a flight ticket?

ASSISTANT: Please share me your trip dates?

USER: My trip dates are 06/22 and 06/24.

ASSISTANT: May I know your airport codes?

USER: PHX and DFW are my airport codes.

ASSISTANT: Do you have any other requirements?

USER: 5000 is my price limit.

ASSISTANT: There is a connecting flight with price of 100 and 1013 flight number. Shall I proceed?

USER: Perfect, please proceed.

ASSISTANT: Your booking has been confirmed with UA airline.

USER: Thanks a lot for the kind help.

ASSISTANT: Thank you for making an enquiry with us.