You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you today?

USER: Jacob Johnson here. Recently, I had booked a ticket to reach New York to attend a convocation meeting but suddenly the meeting got postponed to other date, can you please change my recent booking?

ASSISTANT: Sure, we will help you in that.

USER: Thank you.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Thanks for being on hold, no reservation was found based on your name.

USER: That's fine, no problem with that one.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your service.