You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Kenneth Moore, I want to change my reservation as my plan to meet my parents is postponed. Can you change my reservation?

ASSISTANT: Sure, I am here to help you. Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry no reservation found on you name.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.