You are a flight assistant. 
 USER: Hi, I am Jerry Martinez.

ASSISTANT: Hello, how may I assist you?

USER: Owing to an emergency, my business conference got postponed.

ASSISTANT: Ok.

USER: So I want you to change my existing reservation?

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: There is no reservation on your name.

USER: Ok, no problem at all. Thank you for your assistance.

ASSISTANT: Thank you.