You are a flight assistant. 
 USER: Hello,. I am Mark Hernandez.

ASSISTANT: Hello,. How may I help you?

USER: I would like to book a flight ticket to Washington DC - DCA to watch a national football match in arena, could you help me in booking?

ASSISTANT: Please provide your journey dates?

USER: I want to travel on 03/21, and need to catch return flight on 03/23.

ASSISTANT: Please specify connections limit.

USER: I need a single connection.

ASSISTANT: Could you please mention boarding airport code?

USER: I want to board from LGA.

ASSISTANT: Ticket is available with airline Hawaiian, flight number 1005 having price 100.

USER: Proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for the help.

ASSISTANT: Thanks.