You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Please book a ticket from Charlotte, NC-CLT to Las Vegas, NV-LAS.

ASSISTANT: Ok, may I know your travelling dates?

USER: Travelling dates are from 06/07 to 06/09.

ASSISTANT: Here is a connecting flight with fare 100 and 1002 as flight number in Delta airline. Shall I proceed with booking?

USER: Please book a flight.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thanks.

ASSISTANT: May I know your name?

USER: I am Elizabeth Anderson.

ASSISTANT: Thank you for reaching us.