You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Nicholas Williams. I am planning to attend a meting in Seattle. Can you please book a ticket from PHX to SEA?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: There are my travelling dates 02/19 and return on 02/21.

ASSISTANT: Frontier airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Yes, book the ticket.

ASSISTANT: Nicholas Williams, your ticket is confirmed with flight number 1001.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe flight.