You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Alexander Hill. I want to cancel my recent reservation because bad weather condition, can you help me?

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Thank you.

ASSISTANT: Please allow me a moment.

USER: Sure, take your own time.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: It's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.