You are a flight assistant. 
 USER: Hello,. Matthew Moore here.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to participate in Sports Festival at Washington, can you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, May I know the journey codes?

USER: Source is from OAK. Destination is to DCA.

ASSISTANT: Please help me with your travel dates.

USER: I want to travel on 08/13, and need to catch return flight on 08/15.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We have found a flight from Hawaiian airline with the flight number 1005. Price 100 with one connection.

USER: It is perfect, you can proceed with the booking.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your help.

ASSISTANT: Thank you for availing us.