You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Due to some emergency issues, I would like to change my reservation. Will you please help me to change?

ASSISTANT: Sure, may I know your good name?

USER: Deborah Martin is my name.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: No worries, thank you.

ASSISTANT: Thank you for reaching us.