You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you for the day?

USER: Myself Jacob Phillips. I would like to meet my uncle at Seattle, please help me in booking a ticket from DCA to SEA.

ASSISTANT: Sure, I am here to help you with that flight ticket booking. May I know your planned journey dates?

USER: My planned travel dates are on Apr 22 and Apr 24.

ASSISTANT: Do you have any particular time for departing and returning?

USER: My depart and return time should be in afternoon.

ASSISTANT: Which class do you prefer either economy or business?

USER: Any class is comfortable for my trip.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No more specifications.

ASSISTANT: There are no flights found on this route as per your travel dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.