You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am Stephanie Edwards. Can you please help me in changing my existing reservation?

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.