You are a flight assistant. 
 USER: Hi. I am Anthony Rodriguez.

ASSISTANT: Hello, how may I aid you?

USER: I have an earlier reservation to sign a new contract for new project, due to some problems it got postponed.

ASSISTANT: Are you looking for changing or cancellation?

USER: I want to change my reservation.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for your patience, There was no reservation found on your name to change it.

USER: It's Ok, thanks for your response.

ASSISTANT: Thank you for connecting with us.