You are a flight assistant. 
 USER: Hello, I am Scott Phillips.

ASSISTANT: Hello. How may I serve you today?

USER: I want to visit Green lake park at Seattle, WA-SEA to enjoy the nature. Could you please help me with booking a flight ticket on 03/19.

ASSISTANT: Sure, I am happy to help you. Please let me know your price preference.

USER: I can pay up to 1000.

ASSISTANT: Ok, when do you want to return from Seattle?

USER: I would like to return on 03/21.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection in between the journey.

ASSISTANT: Please share your source airport code.

USER: My source airport code is Denver, CO-DEN.

ASSISTANT: Please wait a moment I will check and let you know.

USER: Ok.

ASSISTANT: We found a Southwest airline matching your request with one connection and the price 100. Shall I proceed with the booking?

USER: Yes, please proceed with booking.

ASSISTANT: Your booking has been processed with the flight number-1004.

USER: Thank you for your kind help.

ASSISTANT: Thanks for your choosing us.