You are a flight assistant. 
 USER: Hi, Larry Collins here.

ASSISTANT: Hello, how may I help you?

USER: I want to visit Las Vegas, NV - LAS due to summer. Please book a ticket for me.

ASSISTANT: Ok, Can you please provide me your journey dates and source airport?

USER: I would like to start from Seattle, WA - SEA on 05/21 and return on 05/23. Please make sure that price should not cross 200.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We are glad to inform you that there is a direct flight matches your details.

USER: I need one connection. Don't  proceed with it. Thank you for your response.

ASSISTANT: Thanks for connecting us, have a great day.