You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Carter.

ASSISTANT: Carter, how may I help you?

USER: I planned to meet my cousin in LAX, can you please help me to book a flight ticket from ORD?

ASSISTANT: Sure, please share your itinerary dates.

USER: I prefer to travel on 04/21 and 04/23.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Spirit airlines with flight 1007 is available.

USER: May I know the fare and connection?

ASSISTANT: It's a connecting flight and ticket costs you 100.

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.