You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you at present?

USER: This is Deborah Scott, from Austin. I need to visit Boston, for sky diving with my friends. But unfortunately, it changed to another dates. So, can you change my reservation?

ASSISTANT: Sure, we are glad to help you to change it.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure, make it as soon as possible.

ASSISTANT: Thanks for waiting, there was no reservation found on your specified name.

USER: That's ok, I think I have reserved with another airlines. Sorry for the inconvenience. Thanks for your response.

ASSISTANT: Thank you for reaching our service.