You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Timothy Perez, I want to book a flight from CO-DEN to attend meeting with share holders. Can you book a flight under fare of 200?

ASSISTANT: Sure,  I will help you in booking. Can you please provide your landing airport code?

USER: I like to land on AZ-PHX.

ASSISTANT: When you are willing to travel?

USER: I will travel on 03/11 and return on 03/13.

ASSISTANT: Please wait a minute, I will search a flight for you.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight available that matches your requirements. Airline is UA and flight number is 1004 with single connection and price 100.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for contacting us.