You are a flight assistant. 
 USER: Hi. Due to sudden demise of my grandfather, I want to cancel my recent reservation.

ASSISTANT: Sure, please provide me your name?

USER: I am Mary Robinson.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: There is no reservation with your name.

USER: Ok, no problem. Thank you for your quick response.

ASSISTANT: Thank you for reaching us.