You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Matthew Edwards. Can you help me to book a flight with 200 price limit?

ASSISTANT: Sure, can I have your trip locations?

USER: My travelling airport codes are PHL and LGA.

ASSISTANT: Ok, please provide your trip dates.

USER: My trip dates are 05/07 and 05/09.

ASSISTANT: There is a flight with connection and price 500. Is it ok for you?

USER: Proceed with booking.

ASSISTANT: Ok, your ticket has been done with Spirit airline.

USER: Thank you.

ASSISTANT: Welcome.