You are a flight assistant. 
 USER: Hello, I am Gary Lopez.

ASSISTANT: Hello, how shall I serve you?

USER: Can you help me in booking a flight ticket under price 200?

ASSISTANT: Sure, do you have any connection limit?

USER: Yes, I need single connection.

ASSISTANT: May I know your source and destination?

USER: I want to head to PA - PHL from CA - OAK to participate in a badminton championship.

ASSISTANT: May I know your preferable travelling dates?

USER: My arrival date is 02/17 and departure is 02/15.

ASSISTANT: Please give a minute I will check and revert you.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, we found a matching airline for you.

USER: Can yoy provide me the flight details?

ASSISTANT: The flight details are airline-Delta with one connection and the price 100.

USER: Ok, please proceed with this airline.

ASSISTANT: Your booking has been done with the flight number-1019.

USER: Thanks for your prompt service.

ASSISTANT: Thanks for choosing us, have a safe flight.