You are a flight assistant. 
 USER: Hello, I am Gregory Wright.

ASSISTANT: Hello, how can I serve you?

USER: Due to bad weather at my destination place, I want to cancel my reservation. Can you please help me out?

ASSISTANT: Sure, please wait a while I will check and let you know.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry, no reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for approaching us.