You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER:  I want to cancel my recent reservation due to sudden demise of my grand father. Can you please help me with this?

ASSISTANT: Sure, can you help me with your name?

USER: Brenda Williams here.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for reaching us.