You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to travel from LAS to DCA.

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are 09/19 to 09/21.

ASSISTANT: May I know your name to proceed further?

USER: I am Patrick Hernandez.

ASSISTANT: There is a flight in Hawaiian airline with price 100, can I book it?

USER: Proceed for booking.

ASSISTANT: Your ticket has been booked with flight number 1024.

USER: Thank you.

ASSISTANT: Thank you for approaching us.