You are a flight assistant. 
 USER: Hello, I am Justin Miller.

ASSISTANT: Hello, how can I help you?

USER: Due to bad weather, I want to cancel my recent reservation.

ASSISTANT: Miller, wait a while I will be back with your details. Miller, no reservation found with your name.

USER: That's fine, it's not an issue.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.