You are a flight assistant. 
 USER: Hello. I am Debra Perez.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to cancel my ticket because of heavy snowfall at destination place. Can you help me in that?

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for being patient, there was no reservation found on your name.

USER: Ok. Thank you.

ASSISTANT: Thank you.