You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Sandra Williams, help me to book a flight ticket on 12/12 and return ticket on 12/14.

ASSISTANT: Ok, please provide me your journey points?

USER: I will fly from NC-CLT to CO-DEN.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  We found connecting flight Southwest with flight number 1015 and price is 100.

USER: Please proceed with booking.

ASSISTANT:  Your booking is done.

USER: Thank you for booking.

ASSISTANT:  Thank you for availing us.