You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Linda Nelson. I just want to change my existing reservation, due to sudden demise of my grand mother. Will you help me with that?

ASSISTANT: Sure Linda, please wait a moment.

USER: Ok, I will wait for your response.

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

USER: Ok, not an issue.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your information.