You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Joshua White, I want to book a flight from Atlanta to visit my friend's house at Denver. Can you book a connecting flight for me?

ASSISTANT: Ok, may I know your travelling dates?

USER: I will fly on Nov 11 and return on Nov 13.

ASSISTANT:  Here is a 2 connection flight with fare 100 and 1006 as flight number in economy class. Shall I proceed with booking?

USER: Sorry, I need a flight with single connection.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: I will fly from ATL to DEN.

ASSISTANT:  Here is a connecting flight with fare 200 and 1020 as flight number in economy class. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.