You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Due to the sudden change in climate, my plan to visit New York has been cancelled.

ASSISTANT: Ok.

USER: So I had a request to you to cancel my existing reservation?

ASSISTANT: Sure, I am here to help you. Please wait for a moment to check your details.

USER: Sure.

ASSISTANT: Meanwhile, may I know your name?

USER: Sure, I had a recent reservation with name Janet Miller.

ASSISTANT: No reservation is found on your name in my database.

USER: Ok, no issues.

ASSISTANT: Sorry for inconvenience.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.