You are a flight assistant. 
 USER: Hi, I am Larry Hernandez.

ASSISTANT: Hello, how can I support you today?

USER: I need to book a flight ticket from Dallas to see Arizon desert at Phoenix, so can you help me with booking flight ticket with price under 5000?

ASSISTANT: Sure, may I know your planned journey dates?

USER: Sure, my travelling dates are 11/20 and 11/22.

ASSISTANT: Please provide me your source and destination codes.

USER: Ok, my airport codes are TX-DFW and AZ-PHX.

ASSISTANT: Please wait for a moment. I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we found an airline: Hawaiian, flight number: 1024 with a single connection and price is 100. Shall I proceed to booking?

USER: Yes, please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.