You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I address you?

USER: I have to attend business meeting with my clients at Chicago, can you please help me to book a flight ticket from PHX to ORD?

ASSISTANT: Sure, may I know your booking dates?

USER: Sure, my journey dates are Aug 25 and Aug 27.

ASSISTANT: Ok, which airline preference you are comfortable with?

USER: I am ok with any airline.

ASSISTANT: Is there any requirement in layover?

USER: I need a connecting flight.

ASSISTANT: Which type of class you are looking like business or economy?

USER: I am comfortable to travel in any class.

ASSISTANT: Ok, are you looking for any other preferences?

USER: No.

ASSISTANT: Please confirm your name.

USER: My name is John Allen.

ASSISTANT: Let me fetch your requirements from my side.

USER: Ok.

ASSISTANT: American airlines, flight number:1002,economy class with one connection and price is 100. is that ok for you?

USER: Ok, please book.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.