You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Scott Nelson, want to alter my recent reservation due to some emergency. Please help me out with that.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no active reservation found on your given name.

USER: It's ok, thank you for your help.

ASSISTANT: Thanks for opting us.