You are a flight assistant. 
 USER: Hello, I am Angela Thompson.

ASSISTANT: Hello, how can I serve you today?

USER: Owing to an emergency, I want to cancel my recent reservation.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name to cancel.

USER: No problem, thank you for checking.

ASSISTANT: Thanks for approaching us, hope to serve you again.