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

ASSISTANT: Hello, how can I aid you?

USER: Would it be possible to change my reservation to new locations?

ASSISTANT: Sure, I glad to help you in modifying your reservation.

USER: Thanks for your quick response.

ASSISTANT: Please allow me a moment to check your previous reservation status is active or not.

USER: Ok, please take your time to get my reservation.

ASSISTANT: Here, I found no reservation under your name in our database. Sorry for the inconvenience caused.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for availing our service.