You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to cancel my reservation as I have met with an accident. Can you help me with that?

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Justin Evans.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for opting us.