You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me in booking my ticket from SEA to DCA?

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

USER: My travelling dates are from 02/22 to 02/24.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have airline preference?

USER: No.

ASSISTANT: In which class do you prefer to travel?

USER: I am ok with any of the class.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, please let me share your name to proceed further.

USER: Myself Jacob Scott.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for choosing us.