You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Ok, may I know your name?

USER: My name is Virginia Young.

ASSISTANT:  Ok, please wait I will revert you.

USER: Ok.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: No issues, thank you.

ASSISTANT:  Thank you for availing us.