You are a flight assistant. 
 USER: Hello, Jonathan Martinez here.

ASSISTANT: Hello. How can I assist you today?

USER: Due sudden change in weather in my travel location I want to cancel my reservation. Can you please help me out?

ASSISTANT: Sure, please give me a moment.

USER: Ok.

ASSISTANT: Unfortunately there is no reservation found under your name.

USER: Ok, not a problem. By the way, thank you for the information.

ASSISTANT: Thank you for reaching us.Have a great day.