You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to change my existing reservation due to sudden rainfall at my source. Can you please help me with this?

ASSISTANT: Sure, we are here to help you. Can I have your name to proceed?

USER: I am Susan Young.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We have found a reservation on your name, kindly mention your new journey locations?

USER: Sure, my airport codes are JFK - SEA.

ASSISTANT: May I know when you are willing to travel?

USER: I want to travel on Apr 21 and need to return on Apr 23.

ASSISTANT: Do you have any specifications to be met?

USER: I need a connecting flight.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.