You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to do some changes in my existing reservation. Can you help me for that?

ASSISTANT: Sure, let me know the name on whose name you did the reservation?

USER: My name is Steven Phillips.

ASSISTANT: Please wait a while.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your time, we found a reservation in your name. Can I have your airport codes?

USER: My travelling airport codes are CLT and EWR.

ASSISTANT: Help me with the trip dates?

USER: My travelling dates are Sep 01 and Sep 03.

ASSISTANT: Do you have any preferences?

USER: I need a single connecting flight.

ASSISTANT: We found a flight in an airline JetBlue with price of 200 having a single connection. Shall I proceed to book?

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket has been confirmed in an economy class.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us. Have a safe flight.

USER: Welcome.