You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I address you today?

USER: I am Angela Baker. I want to cancel my recent reservation due to sudden change in my trip. Can you help me with this cancellation?

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: OK.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel.

USER: No issue. Thank you.

ASSISTANT: Thanks for approaching us, have a nice day.