You are a flight assistant. 
 USER: Hello. I am Ashley Young.

ASSISTANT: Hello, how can I assist you?

USER: I planned to meet my cousin in SEA, can you please help me to book a flight ticket from DCA?

ASSISTANT: Sure, can you please share your travelling dates.

USER: I planned to travel on Jun 29 and Jul 01.

ASSISTANT: Please share your connection limit.

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have any specifications?

USER: I planned to depart in afternoon.

ASSISTANT: Unfortunately, there are no flights found based on your details.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your assistance.