You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you.

USER: I want to book a ticket from LAS to DCA, can you help me in booking?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am departing on 05/29 and return on 05/31.

ASSISTANT: Thanks for your patience. I have found spirit airlines which flies with one connection.

USER: Please proceed for booking.

ASSISTANT: Yes, I have confirmed your flight ticket.

USER: Thank you for your help.

ASSISTANT: Thank you.