You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Frank Thomas, can you help me to book a flight from LAS to IAD?

ASSISTANT: Ok, can I have your travel dates?

USER: My planning dates are Nov 24 and Nov 26.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: Here I found a flight-1012 with price 100, is it ok for you?

USER: Yes, proceed with booking.

ASSISTANT: Ok, your ticket has been done on Spirit airlines.

USER: Thank you.

ASSISTANT: Welcome Frank Thomas.