You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Myself Donna Mitchell, I need to schedule my trip to Francisco to meet my friend. Can you please help me for booking the ticket from LAS to SFO?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable dates of travelling?

USER: I will drop-off 09/14 and again I will be return back on 09/16.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure, I will wait for your response.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by Spirit airlines. Shall I proceed with this?

USER: Yes, you can proceed for booking.

ASSISTANT: Ok, your ticket has been booked in flight number 1013.

USER: Thank you very much for booking the ticket.

ASSISTANT: Thank you for reaching us, have a great day.