You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Michael Evans. 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 a moment I will revert you back with the proper information.

USER: Thank you for accepting my request.

ASSISTANT: There is no reservation found on your name to change it.

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

ASSISTANT: Thanks for reaching us.