You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I just want to change my existing reservation, due to sudden demise of my grand mother.

ASSISTANT: Ok. May I know your name further process?

USER: Nichole Garcia is my name.

ASSISTANT: Ok, wait for some time I will check the reservations on your name and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: That's ok, thank you.

ASSISTANT: Thanks for approaching us.