You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How shall I assist you ?

USER: I planned to visit Disneyland with my family, But it is got postpone due to some personal reasons. Can you please do the changes in reservation?

ASSISTANT: May I know your name ?

USER: Raymond Phillips.

ASSISTANT: There is no reservation.

USER: Ok. Thank you for the confirmation.

ASSISTANT: Thanks.