You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I oblige you today?

USER: I have made an earlier reservation on the name of Nancy Young to attend for a meeting, due to some technical issues the meeting has been postponed. Can you aid me to change my reservation?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation was found on your name in our database.

USER: Ok, no issue. Thanks for your help.

ASSISTANT: Thank you for choosing us.