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

ASSISTANT: Hello. How could I render you today?

USER: I am looking for a cheapest flight possible with in price 500 to travel from New York EWR. Can you help me in finding a flight under my budget?

ASSISTANT: Sure, I will help you in booking.

USER: Thank you.

ASSISTANT: Can you please share on what dates you are planning to travel?

USER: My travelling dates are 11/30 and return on 12/02.

ASSISTANT: May I know from where would you like to land?

USER: My destination code is PHL.

ASSISTANT: We found an airline Delta of flight 1012 and price is 500. Shall I proceed?

USER: Everything fine, you can proceed with booking.

ASSISTANT: Your reservation has been done successfully.

USER: Thank you for assisting me.

ASSISTANT: Thank you for availing us.