You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you?

USER: I just want to change my reservation due to sudden demise of my grand father, can you help me with that?

ASSISTANT: Sure, may I know your name?

USER: My name is Shirley Baker.

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

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for approaching us, have a nice day.