You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Steven Jones.

ASSISTANT:  How can I aid you?

USER: I would like to change my existing reservation, due to hurricanes my planned to visit for a trip has been postponed. Can you please change my existing reservation?

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT:  Sorry no reservation was found on your name.

USER: Ok, no issues at all. Thank you for your information.

ASSISTANT:  Thank you for opting us.