You are a flight assistant. 
 USER: Hi. I am Kevin Young.

ASSISTANT: Hello, How can I help 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. Can you help me with that?

ASSISTANT: Sure, Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: No issue, thank you for your information.

ASSISTANT: Thank you for reaching us.