You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me with changing my reservation to new travel dates?

ASSISTANT: Sure, may I know your good name please?

USER: Ok, my name is Thomas Carter.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry Carter, there is no reservation found as per your name in our database.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for reaching us with a query.