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

ASSISTANT: Hello, How can I help you today?

USER: Due to heavy snow-storms, I want to cancel my recent reservation.

ASSISTANT: Ok, please wait for a minute, I will check and let you know.

USER: Sure.

ASSISTANT: Thanks for waiting. Unfortunately, there is no reservation found with this name.

USER: Thank you for your service.

ASSISTANT: Have a Great day.