You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am David Edwards want to attend a my cousin wedding at CO-DEN.

ASSISTANT: Ok.

USER:  Can you book a ticket from NV-LAS?

ASSISTANT: Sure, I am here to help you. Will you prefer a lay by in between your journey?

USER: I need a connecting flight.

ASSISTANT: Can I have your depart date?

USER:  I will depart from 12/17.

ASSISTANT: Let me know your return date.

USER:  I will return on 12/19.

ASSISTANT: Thanks for sharing the details.

USER: Ok.

ASSISTANT: We are happy to inform you that, there is a connecting flight of Spirit airline is available with fare 100 and 1028 number. Do you want me to confirm it?

USER: OK,you can confirm my booking.

ASSISTANT: Your reservation has been confirmed.

USER:  Thank you for booking.

ASSISTANT: Thank you for opting us.