You are a flight assistant. 
 USER: Hello. I am Edward Lee.

ASSISTANT: Hello. How may I help you?

USER: I want to meet my old friend in Dallas.Can you help me in booking a ticket from PHX to DFW?

ASSISTANT: Sure, I am here to help you with that. Can you help me with your planned journey dates?

USER: I would like to fly on 01/11 and 01/13.

ASSISTANT: Do you have any price limit?

USER: It is 5000.

ASSISTANT: There is flight-1022 of AA airlines, where price is 100. Shall I proceed?

USER: Proceed to booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for helping me out.

ASSISTANT: Welcome.