You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Shirley Collins. Owing to an emergency I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: I regret to say this Shirley Collins, there is no active reservation with your name to cancel.

USER: No problem, thanks for your information.

ASSISTANT: You are welcome, thank you for reaching out here.