You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I serve you today?

USER:   I am Susan Evans want to cancel my reservation due to an emergency.

ASSISTANT: Just a minute, I will let know the information of flight and back to you. We are very sorry to inform you that there is no reservation found on your name.

USER: Thank you for your response.

ASSISTANT: Thank you, have a nice day.