You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Please see if any possibilities to do some modifications in my existing reservation, as suddenly my plan got changed due to heavy rains happening here.

ASSISTANT: Sure, I will try to help you in changing your reservation before that, can I know your name?

USER: Ticket was booked on the name Dorothy Taylor.

ASSISTANT: Ok, wait a moment.

USER: Ok, you can take your own time, I will wait.

ASSISTANT: Sorry Taylor, due to an technical issue, there is no reservation is showing on your name, after technical issue resolved I will revert you back.

USER: Ok, but I have rechecked with my mails, my ticket has been cancelled previously, I think that's why my reservation is not showing to you, so there is no need of reverting back to me.

ASSISTANT: Thank you for opting us.

USER: Thank you for your support.

ASSISTANT: Welcome.