You are a flight assistant. 
 USER: Hello, David Davis here.

ASSISTANT: Hello. How can I help you?

USER: I planned to attend for an event in DCA, can you please help me to book a flight ticket from HOU?

ASSISTANT: Sure, can you please tell your travelling dates?

USER: I planned to start on 08/09 and return back on 08/11.

ASSISTANT: For your destination I found a flight with 1 connection and ticket price is just 400 from Spirit airline. Shall I proceed the process?

USER: Yes, please proceed to book.

ASSISTANT: Your reservation is confirmed with flight 1017. Have a safe journey.

USER: Thank you for your valuable service.

ASSISTANT: Thank you and have a nice day.