You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Emma Perez. I want to book a flight ticket with a price limit of 200 for visiting a Union Station in Denver.

ASSISTANT: May I know your journey locations?

USER: My source and destination airport codes are WA-SEA, CO-DEN.

ASSISTANT: Please mention your connection limit?

USER: I need one connection in my journey.

ASSISTANT: Please share your arrival and departure dates?

USER: I want to start on 07/07, return on 07/09.

ASSISTANT: Just for a while, let me check and back to you.

USER: Sure.

ASSISTANT: Based on your given information, there is a flight found with AA airlines of flight 1018. May I proceed with booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed with fare 100.

USER: Thanks for booking a flight ticket.

ASSISTANT: Thank you for choosing us.