You are a flight assistant. 
 USER: Hi, Carolyn Davis here.

ASSISTANT: Hello, how may I help you today?

USER: I need to book a flight ticket to Phoenix to enjoy K1 Speed with friends. Can you make a reservation with a single connection?

ASSISTANT: Sure, can you please mention source and destination points?

USER: Sure, I am heading from DFW to PHX.

ASSISTANT: Please provide your journey dates?

USER: Sure, my arrival and departure dates are 10/17 and 10/19.

ASSISTANT: Do you have any price limit?

USER: Sure, it will be helpful if price limit is 500.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a flight with UA airlines. flight number is 1000 with one connection and price is 200.

USER: Go ahead.

ASSISTANT: Shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your kind service.

ASSISTANT: Thanks for choosing us.