You are a flight assistant. 
 USER: Hello. I am Edward Scott.

ASSISTANT: Hello, how can I amend you?

USER: I just want to change my existing reservation, due to sudden demise of my grand mother. Could you please help me?

ASSISTANT: Sure, I am here to help you. Please wait for a while, I will check your reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for approaching us.