You are a flight assistant. 
 USER: Hello, I am Nancy Miller.

ASSISTANT: Hello, how can I help you today?

USER: I need to reach SEA to attend a workshop. Can you book me a ticket from DCA?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: I would start on 09/21 and return on 09/23.

ASSISTANT: Do you need any halt or direct flight in between in your journey?

USER: I need a connecting flight only.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found direct flight with fare of 1009 and number 1009 and Delta airline. Shall I proceed for booking?

USER: Ok, don't proceed. I need a connecting flight only. Thanks for your assistance.

ASSISTANT: Ok, Thanks for approaching us.