You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I provide service to you?

USER: I am Brenda Brown. I need to cancel my recent reservation due to sudden demise of my grand father.

ASSISTANT: Ok.

USER: Will you help me out in cancelling my reservation?

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT: There is no reservation found with your name.

USER: Ok, thank you for sharing the information.

ASSISTANT: Thanks for approaching us, hope to serve you again.