You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,How can I help you?

USER: I met with an emergency work. So, I want to cancel my recent reservation.

ASSISTANT: Sure, Can you please help me with you name?

USER: Sure, I am Amy Martin.

ASSISTANT: Thank you,please give me moment.

USER: OK,.

ASSISTANT: Sorry for the inconvenience , we did not find any previous reservation on your name.

USER: Fine, Thank you.

ASSISTANT: Thank you have a great day.