You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I want to fly from LAS to DEN. Can you check the flight availability on that route?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My planned travel dates are 01/19 and 01/21.

ASSISTANT: Can I know your name please?

USER: Sure, Carol Hill here.

ASSISTANT: Do you need any specifications?

USER: I want a flight with single connection.

ASSISTANT: Can I know your other preferences?

USER: No more, thank you.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Yes, you can proceed with that booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1017.

USER: Thank you for the booking.

ASSISTANT: Thank you for reaching us.