You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking a flight ticket from LAX to LAS?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to fly on Mar 18 and return on Mar 20.

ASSISTANT: Do you need connecting flight?

USER: I need a single connection.

ASSISTANT: May I know your other preferences?

USER: I don't have any other preferences.

ASSISTANT: Can I know your name?

USER: Myself Linda Taylor.

ASSISTANT: There is a flight of frontier airline, flight number 1021 with the fare of 100.

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.