You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Nancy Roberts. I want to travel from LAX to DEN., please check is there any airline providing flights in that route.

ASSISTANT: Sure, please let me know on which dates you would like to travel?

USER: I want to travel on 02/25 and 02/27.

ASSISTANT: I found a flight 1009 of Frontier airlines available for you. Shall I book the ticket?

USER: Yes, please.

ASSISTANT: Ok Nancy, your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you, have a safe journey.