You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I amend you today?

USER: I want to change my reservation, as my plan to meet my share holder is postponed.

ASSISTANT: Ok.

USER: Can you help me?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: Let me know your name for checking your reservation.

USER: Please check it on my name, Kathleen King.

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

USER: Sure, I will wait.

ASSISTANT: Thanks for your time.

USER: Ok.

ASSISTANT: Sorry, to notify you that there is no reservation found on your name Kathleen King in our database.

USER: I think it was reserved with another airlines. Anyway, Thanks for the effort.

ASSISTANT: Ok, Thank you for approaching us.