You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Jerry Thompson need to change my reservation as my meeting got postponed, can you please help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a minute, I will check the reservation and revert to you.

USER: Ok.

ASSISTANT: Sorry, we couldn't find any reservation on your name to change.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us.