You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: i would like to change my recent reservation, will you help me with that?

ASSISTANT: Sure, may I know your name?

USER: Myself Carol Moore.

ASSISTANT: I found your previous reservation, please share your rescheduled itinerary dates.

USER: My travelling dates are Dec 10 and Dec 12.

ASSISTANT: May I know your genesis and terminus airport codes?

USER: My airport codes are SFO and ATL.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No, thank you for asking.

ASSISTANT: Please hold on for a while.

USER: Ok, I will wait.

ASSISTANT: Sorry Carol Moore, no direct flight is available on your planned dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.