You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Janet Wright here, I would like to visit Washington, can you please help me to book a ticket from LAS to DCA?

ASSISTANT: Sure, can you share your travel dates please?

USER: Ok, my dates of journey is from 06/07 to 06/09. Please make sure that the connections limit is 1.

ASSISTANT: Thanks for waiting. I have found southwest airlines which flies with one connection.

USER: Ok, you can book.

ASSISTANT: Yes, I have confirmed your flight ticket.

USER: Thank you for your help.

ASSISTANT: Thank you.