You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: I am planning to visit Denver, CO-DEN with my sister. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you with that, please share your source airport code?

USER: Sure, the source code is from CA-SFO.

ASSISTANT: May I know your journey travelling dates?

USER: The travelling dates are 04/23 to 04/25.

ASSISTANT: I found a flight for you that Delta airline with connection 1 as per your details, can I proceed to booking?

USER: Yes, proceed with my booking on the name of Kimberly Hernandez.

ASSISTANT: Kimberly, your ticket is confirmed by flight number 1019.

USER: Thank you for your help.

ASSISTANT: My pleasure, have a nice day.