You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: It is possible to change me existing reservation which I have done earlier?

ASSISTANT: Sure. May I know your name?

USER: My name is Ruth Gonzalez.

ASSISTANT: Give me  a minute.

USER: Sure.

ASSISTANT: We found a reservation by this name. Can I know your updates journey dates ?

USER: Sure, I will be travelling on Mar 6 and 8th.

ASSISTANT: Kindly share me your airport codes.

USER: I will fly from DEN to CLT.

ASSISTANT: Do you have any other requirements?

USER: Please look for a flight with not more than one connection.

ASSISTANT: Ok. We found a connecting flight with Jetblue airline, flight number:1020.

USER: Please proceed with it.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you for your help in changing my reservation.

ASSISTANT: Thank you for reaching us.