You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Melissa Lopez.

ASSISTANT: How can I help you Melissa Lopez?

USER: I have a doctor appointment at New York. Can you find any flights available?

ASSISTANT: Sure, may I know your airport codes of travelling?

USER: My airport codes are LAX and LGA.

ASSISTANT: Please help me with your dates.

USER: I am planning to travel on dates 06/28 and 06/30.

ASSISTANT: Wait a moment to check the availability of flights.

USER: Sure.

ASSISTANT: Flight-1010 of Southwest airlines available on your requested dates. Shall I proceed?

USER: Make sure the price is below 500.

ASSISTANT: Yes, the price of the flight ticket is 200.

USER: That's perfect. Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your favour.

ASSISTANT: Thank you and have a safe journey.