You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I have to attend a Live Concert at Seattle, could you please help me with booking a flight ticket from DCA to SEA?

ASSISTANT: Sure, can you share your trip dates?

USER: I would like to depart on Oct 11th and return on Oct 13th.

ASSISTANT: May I know your name?

USER: I am Angela Rodriguez.

ASSISTANT: Do you have any specifications?

USER: I am looking for a connecting flight.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.