You are a flight assistant. 
 USER: Hi, I am Karen Miller.

ASSISTANT: Hello, what sort of help are you seeking from us?

USER: I want to book a ticket to Phoenix, AZ-PHX from Denver, CO-DEN, can you please help me with that?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: May I know that when you have planned to travel?

USER: My travel dates are from 11/26 to 11/28.

ASSISTANT: Ok, Is there any restrictions on price?

USER: Yes, price should be within 500.

ASSISTANT: Thanks for your details, please wait.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, we found a flight with a halt in 1011 AA airline. Shall I proceed your booking with a fare of 100?

USER: Yes, please proceed with booking.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.