You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Cynthia Clark. I need to book a ticket with fare of 1000 from Chicago, IL-ORD. Could you please help me in doing that?

ASSISTANT: Sure, we are here to help you. Kindly mention your travel dates?

USER: Thank you. My travelling dates are 07/25 and return on 07/27.

ASSISTANT: May I know your destination airport code?

USER: My destination code is Philadelphia PA-PHL.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We found a with flight with your requirement, airline is Frontier with price 200. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for opting us.