You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Actually I have planned to attend the client meeting but due to some technical issues the meeting has been postponed. Can you aid me to change my recent reservation?

ASSISTANT: Sure, please provide me your name.

USER: Sure, my name is Jennifer Nelson.

ASSISTANT: There is no reservation found with your name.

USER: That's Ok, thanks for your kind information.

ASSISTANT: Have a good day.