You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to visit Pike Place Market in Seattle.Can you please help me out?

ASSISTANT: Sure, please provide your travel details.

USER: The airport codes are from CO-DEN to WA-SEA. The journey dates are from 03/20 to 03/22.

ASSISTANT: Let me check, please wait for a moment.

USER: Sure.

ASSISTANT: May I know your name? Flight number 1004 of Spirit airlines is available for you.

USER: My name is Jonathan Lewis.

ASSISTANT: Lewis, should I book your ticket?

USER: May I know the price limit?

ASSISTANT: Ticket fare is 200.

USER: Ok, please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me out.

ASSISTANT: Thank you for contacting us.