You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. By what way can I aid you now?

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

ASSISTANT: Sure, I will help you. To check the reservation, I want to know your name.

USER: Emily Roberts here.

ASSISTANT: Please hold on.

USER: Ok.

ASSISTANT: Thanks for being patience. We did not find any reservation on your name to change. Thank you for choosing us, have a pleasant day.

USER: No problem, Thanks for the information.