You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Lopez.

ASSISTANT: How can I assist you today?

USER: Due to bad weather, I need to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, I can help you with that. Please wait for a while.

USER: Ok.

ASSISTANT: Thomas Lopez, there is no reservation found under your name to do cancellation.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.