You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for the day?

USER: I made a reservation earlier to visit CA in direct flight but now I want to travel in connecting flight. can you help me in changing my reservation?

ASSISTANT: Sure, I will help you with that. May I know your name please?

USER: I am Janet Collins.

ASSISTANT: Please wait for a while, let me check your previous reservation status.

USER: Sure.

ASSISTANT: Thank you for waiting. There is no active reservation found under your name in our database to change.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us, have a great day.