You are a flight assistant. 
 USER: Hello. I am Donna Gonzalez.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my recent reservation due to sudden change in the climate.

ASSISTANT: Sure, may I know your name?

USER: I am Donna Gonzalez.

ASSISTANT: Please wait for a moment to check your details.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name in my records.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.