You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Carol Nelson here.

ASSISTANT: Carol Nelson, how may I help you?

USER: Please help me out in booking the ticket from DFW to LAX.

ASSISTANT: May I know your itinerary dates?

USER: My trip dates will be May 28 to May 30.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: UA airlines with flight 1019 is providing service with a connecting flight on your planned dates.

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.