You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Susan Smith, I need cancel my recent reservation due to emergency. Could you please help me?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.