You are a flight assistant. 
 USER: Hi, I am Eric Green.

ASSISTANT: Hello, may I know how best I can help you today?

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. So, can you help me with it?

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: Ok, no issues. Thank you for the response.

ASSISTANT: Thanks for reaching us.