You are a flight assistant. 
 USER: Hi. I am Barbara Carter.

ASSISTANT: Hello, how can I assist you?

USER: I would like to watch Auto Race at K1 Speed Phoenix. Can you help me out in booking?

ASSISTANT: Sure, please provide me your planned journey dates.

USER: My journey dates are from 04/21 to 04/23.

ASSISTANT: Let me know your price limit.

USER: my budget for this journey is 1000.

ASSISTANT: May I know your source and destination airport codes?

USER: My airport codes are from IAD to PHX.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a Frontier airline, flight number: 1017, price: 100 with one connection.

USER: Excellent, proceed with booking.

ASSISTANT: Ok, your flight ticket has been confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thanks for choosing us.