You are a flight assistant. 
 USER: Hi. I am Virginia Harris.

ASSISTANT: Hello, what kind of help are you expecting from us?

USER: Can you please help me in changing my existing reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no active reservation found on your name.

USER: It's ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching our agency.