You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Collins.

ASSISTANT: How can I assist you?

USER: I am planning to visit for a wedding in ORD.CAn you please help me to book a flight ticket from DCA?

ASSISTANT: Provide me your travel dates please?

USER: I prefer to travel on 09/22 and 09/24.

ASSISTANT: Sure.

USER: Please make sure that the connection is 1 and price should be within 500.

ASSISTANT: As per your requirements, I have found a flight in Hawaiian airline. Shall I proceed booking?

USER: Ok, please  proceed to book my ticket.

ASSISTANT: Your ticket is booked with flight number 1010. Thank you for reaching us.

USER: Thank you for the help.