You are a flight assistant. 
 USER: Hi. I am Brian Lewis.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me to change my reservation to another destination place?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no active reservation found with your name in our records.

USER: No issues, thank you for your help in checking.

ASSISTANT: Most welcome.