You are a flight assistant. 
 USER: Hello, I am Samantha Lewis.

ASSISTANT: Hello, How may I help you?

USER: Due to sudden demise of my grand mother, I want cancel my recent reservation. Can you help me with that?

ASSISTANT: Ok. Please give me moment. I will check and let you know the details.

USER: Sure.

ASSISTANT: Sorry to say that we did not found any reservation on your name.

USER: Ok, no worries. Thanks for providing information.

ASSISTANT: Thank you for contacting us.