You are a flight assistant. 
 USER: Hello, I am Jack Martinez.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: As my hobby is gardening, I want to collect different varieties of plants by attending flower festival on 05/27. Can you please book a flight ticket from Washington, IAD?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Can you please provide your landing airport code?

USER: Las Vegas, LAS is my landing point.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, there should be a lay by.

ASSISTANT: Can you please ensure your return date?

USER: My return will be on 05/29.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your precious time. We found Spirit airline fare of 200. Shall I proceed for booking with single stopover flight?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1003.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.