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

ASSISTANT: Hello, how may I assist you today?

USER: Can you please book me a ticket with in the range 1000?

ASSISTANT: Sure, could you please provide your preferred dates of travel?

USER: My travelling dates are 04/15 to 04/17.

ASSISTANT: Help me with your source and destination points.

USER: Sure, my source code is from New York, NY - LGA and destination code is Phoenix, AZ - PHX.

ASSISTANT: Ok, please wait for a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for your precious time. We found a connecting flight in Delta airline has fare 200. Shall I proceed?

USER: Please proceed to book.

ASSISTANT: Your booking has been done.

USER: Thank you for helping us.

ASSISTANT: Thank you for opting us.