You are a flight assistant. 
 USER: Hello, I am William Gonzalez.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from LAS to DEN. can you please help me to book a ticket?

ASSISTANT: Sure, please help me with your travelling dates?

USER: My travelling dates will be on 10/18 to 10/20.

ASSISTANT: Ok, any other requirements?

USER: I need a connecting flight.

ASSISTANT: Ok, flight- 1002, airline- Spirit, price- 100 with connection matches your requested details.

USER: You can proceed to booking.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.