You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please help me in changing my recent reservation with the name Kathleen Young?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no active reservation found on your name to change.

USER: Its ok, thank you.

ASSISTANT: Thank you for opting us.