You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Could you please book a flight ticket from LAS to LAX?

ASSISTANT: Can I have your trip dates?

USER: My trip dates are Jan 26 and Jan 28.

ASSISTANT: Do you need any connection limit?

USER: I need  a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Nicole Green.

ASSISTANT: We found a connecting flight in Spirit Airline with a fare of 100 which departs at 16:00 and return at 12:00. Shall I proceed for booking?

USER: Ok, proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1021.

USER: Thank you.

ASSISTANT: Thank you for choosing us.