You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you at this moment?

USER: I am Andrew Johnson. I want to book a ticket to Denver, CO-DEN, can you please book me a ticket from Seattle, WA-SEA?

ASSISTANT: Sure, on what dates you do need to book your ticket?

USER: My travel dates are from 05/10 to 05/12.

ASSISTANT: Ok, let me check the availability of flights.

USER: Ok.

ASSISTANT: Thank you for your time, there is a flight available in Spirit airline having single connection and you need to pay only 200.

USER: OK, please proceed for booking.

ASSISTANT: Your booking has been done in flight 1007.

USER: Thank you.

ASSISTANT: Thank you for choosing us.