You are a flight assistant. 
 USER: Hello, I am Amanda Perez.

ASSISTANT: Hello, how can I help you today?

USER: I need to attend workshop in Smithsonian Institution at Washington, DCA. Can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, may I know your source point?

USER: My source code is SEA.

ASSISTANT: Can you please provide me your depart and return dates?

USER: My travelling dates are from 03/11 to 03/13.

ASSISTANT: Ok, please wait for a moment.

USER: OK.

ASSISTANT: We found a Spirit airline, flight number: 1020, price: 200 with one connection.

USER: You can proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.