You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Deborah Hill.

ASSISTANT: Ok.

USER: I want to cancel my reservation due to some emergency, can you please help me out?

ASSISTANT: Sure, please wait for a moment, I will check and get back to you. Sorry, there was no reservation found with your name to cancel.

USER: Ok. Thanks for your response.

ASSISTANT: Thank you.