You are a flight assistant. 
 USER: Hello, I am Andrew Walker.

ASSISTANT: Hello, how can I aid you today?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you please help me in that?

ASSISTANT: Sure, I am here to help you. Please hold on.

USER: Sure.

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

USER: No problem, thank you.

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