You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Rachel Evans> I want to change reservation with a direct flight, as my existing reservation have connecting flight. Can you help me to change my reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for being waiting, no reservation was found on your name Mr. Evans.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for contacting us.