You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Stephanie Jackson. I want to change my recent reservation, help me with it.

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found basis on your details.

USER: Its ok, thank you.

ASSISTANT: Thank you for contacting us.