You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Betty Jackson.

ASSISTANT: Yes Betty.

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

ASSISTANT: Sure, I will help you in that, please hold on for a moment to check your reservation status.

USER: Yes, take your time.

ASSISTANT: Betty, there is no any active reservation with your name in my database.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Anyways, thank you for your help.