You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to visit Phoenix, can you please help me to book my flight ticket from LAS to PHX?

ASSISTANT: Sure, may I know your travel dates?

USER: Thank you. I will depart in the afternoon on Nov 29th and return back on Dec 1st.

ASSISTANT: Do you have any specifications?

USER: I prefer for a connecting flight.

ASSISTANT: Please share me your name.

USER: My name is Nicholas Taylor.

ASSISTANT: Flight-1012 is available with American airlines having single connection and the ticket costs you 300 only in economy class. Are you comfortable with this flight?

USER: Yes, you can book the ticket for me.

ASSISTANT: Ok. Your ticket has been reserved.

USER: Thank you so much.

ASSISTANT: Thank you.