You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I'm Samuel Walker. Due to bad weather condition, I have decided to cancel my trip. Can you cancel my reservation?

ASSISTANT: Sure, I can help you with that. Please give me a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: It's fine. Thank you for your help.

ASSISTANT: Thank you, have a nice day.

USER: Welcome.