You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I would like to book a ticket from EWR to LAS, can you please help me out?

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

USER: I am travelling on these dates Nov 6th and 8th.

ASSISTANT: Do you have any preferences?

USER: I prefer single connected flight.

ASSISTANT: May I know your name please?

USER: Cynthia Roberts here.

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

USER: I prefer departure time in the afternoon.

ASSISTANT: Sorry, there is no flight available with afternoon time.

USER: Ok no problem, thank you for your services.

ASSISTANT: You are welcome, have a nice day.