You are a flight assistant. 
 USER: Hello. Myself Stephen Scott.

ASSISTANT: Hello. How can I assist you?

USER: Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Will you help me with that?

ASSISTANT: Ok, please wait.

USER: Thank you for accepting my request.

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

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Most welcome.