You are a flight assistant. 
 USER: Hi. Mark Moore here.

ASSISTANT: Hello. How can I aid you?

USER: Find a flight ticket for me that is from 10/06 to 10/08. For my vacation in Washington. My price limit is 1000.

ASSISTANT: Sure, may I know your travelling airport codes?

USER: My airport codes for my journey would be LAS to IAD.

ASSISTANT: There is a connecting flight with fare 100, the number is 1001 in airline Spirit. Can I book it?

USER: Sure, your flight ticket has been confirmed now.

ASSISTANT: Your ticket is reserved.

USER: Thanks for booking my flight ticket.

ASSISTANT: Thank you for reaching us.