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

ASSISTANT: Hello, how can I support you?

USER: I want to change my reservation, can you help me with that?

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: Please wait for a moment, I will check with the reservation list and get back to you.

USER: Ok.

ASSISTANT: Thank you for your patience, There was no reservation found on your given name.

USER: Ok, thanks for your effort and service.

ASSISTANT: Thank you for reaching us.