You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, may I know your good name?

USER: I am Amanda Collins.

ASSISTANT: How can I assist you?

USER: I just want to change my reservation due to sudden demise of my grand father, can you help me with change my reservation?

ASSISTANT: Sure, we are here to help you. No reservation found with your name.

USER: Ok, no issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you.