You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Janet Nelson, I want to change my existing reservation as my leg got hurt and I can't travel. Can you please help me?

ASSISTANT: Sure, please be on hold.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name.

USER: No problem. Thank you for information.

ASSISTANT: Thank you for opting us.