You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I made a earlier reservation to attend a meeting, due to some political disturbances it got postponed.

ASSISTANT: Ok.

USER: Can you please change my existing reservation?

ASSISTANT: Sure, we are here to make your work ease.

USER: Thank you.

ASSISTANT: May I know on which name the ticket has been reserved?

USER: Sure, I made a earlier reservation with the name of Jeffrey Robinson.

ASSISTANT: Ok, please be on hold, I will check the status of your reservation and let you know.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your precious time.

USER: Ok.

ASSISTANT: I have checked with the reservation list in our database, your name is not in the list.

USER: Ok, not an issue. May be booking is not done properly.

ASSISTANT: Ok.

USER: Any way thank you for your information.

ASSISTANT: Thank you for availing us, Hope to serve you again.