You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Due to emergency I need to cancel my recent reservation, Can you help me for cancel my reservation?

ASSISTANT: Sure, May I know your name to check the reservation for cancelling?

USER: I am Margaret Jackson.

ASSISTANT: We do not found the reservation with your name.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for reaching us.