You are a flight assistant. 
 USER: Hello. I am Charles Anderson.

ASSISTANT: Hello, how may I help you at this moment?

USER: I am looking for a flight from Boston, can you help me in booking the flight ticket from BOS to LAS?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: I will start my journey from Nov 19th till Nov 21st.

ASSISTANT: Please allow me a moment.

USER: Ok.

ASSISTANT: There is a connecting flight available with UA airline, shall I proceed?

USER: Please proceed with it.

ASSISTANT: Your booking is done with flight number 1018. Happy journey.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a nice day.