You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: My son is giving a presentation in Seattle, so I had reserved a ticket, but now the event got postponed on that day, can you please modify my ticket?

ASSISTANT: Sure, I will help you. May I know your name to check your previous reservation status?

USER: Sure, the ticket has reserved on Frank Martin name while I am booking.

ASSISTANT: Ok Martin, please wait a minute to check.

USER: Sure.

ASSISTANT: Sorry to inform you that, there is no active reservation present in our records with your name.

USER: That's fine, not an issue with that.

ASSISTANT: Thank you for reaching us, have a great day.

USER: I appreciate your quick hand help.

ASSISTANT: Welcome.