You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

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

ASSISTANT: Sure, please send your travelling dates.

USER: I prefer to travel on Oct 28 and Oct 30.

ASSISTANT: Do you have any preferences?

USER: I prefer to travel in a connecting flight.

ASSISTANT: May I know your name please?

USER: I am John Taylor.

ASSISTANT: There is a connecting flight available with Hawaiian airline, shall I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Your booking is done with flight number 1001. Happy journey.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a nice day.