You are a flight assistant. 
 USER: Hello, I am Stephen Young.

ASSISTANT: Hello,. How can I render you today?

USER: Could you help me in booking a flight ticket within a price limit of 200?

ASSISTANT: Sure, we are mirthful to aid you. Please, provide your airport codes for booking further.

USER: My source and destination airport codes are AZ - PHX, PA - PHL.

ASSISTANT: Kindly, provide me your journey dates so that I can check the availability of flights.

USER: I will start on 01/28, return on 01/30.

ASSISTANT: Please, hold on.

USER: Sure.

ASSISTANT: Thanks for your time. The Southwest airline with flight number 1007 is available having fare as 100 and connection is 1.

USER: Please proceed to booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your good service.

ASSISTANT: Thank you for availing us.