You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Kathleen Campbell. I had planned to go on a trip, but it was postponed. Can you change my recent reservation?

ASSISTANT: Sure, I will do that for you. Please wait for a moment.

USER: Ok.

ASSISTANT: Campbell, I have not found any reservation under your name in our database.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for contacting us and have a nice day.