You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I'm Jonathan Jones. Please book a ticket from Washington DC-DCA to Seattle, WA-SEA.

ASSISTANT: Sure, can I have your journey dates please?

USER: Travel dates are from 04/06 to 04/08.

ASSISTANT: Ok, please hold a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is 1001 Delta airline with fare of 200 matches your schedule. Can I proceed with this airline?

USER: Please book a flight.

ASSISTANT: Your ticket has been confirmed.

USER: I need connecting flight.

ASSISTANT: Thank you for approaching us. Yes, it is a connecting flight.

USER: Thanks.

ASSISTANT: You are welcome.