You are a flight assistant. 
 USER: Hi, Amanda Harris here.

ASSISTANT: Hello, how may I assist you now?

USER: I have planned to visit Heard museum at Phoenix, AZ - PHX. Can you please book a ticket with a price limit of 500?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your source airport code?

USER: My boarding point is Dallas & Fort Worth, TX - DFW.

ASSISTANT: Please mention the planned journey dates?

USER: My scheduled dates of journey are 07/21 and 07/23.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a connecting flight of airline Frontier, flight number is 1023 and fare is 100. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for your assistance.

ASSISTANT: Thank you for reaching us, hope see you again.