You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide service to 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: Sure, can I have your airfare?

USER: The fare should be 500.

ASSISTANT: Is there any connection limit?

USER: I need a direct flight.

ASSISTANT: Help me with your planned dates of travel?

USER: My trip dates are 04/29 and recur on 05/01.

ASSISTANT: Ok, from where you would like to board?

USER: I want to start from San Francisco, CA - SFO.

ASSISTANT: May I know your name for booking process?

USER: I am Anthony Martin.

ASSISTANT: Sorry, there were no flights found with your given details.

USER: Ok, no issues.

ASSISTANT: Thanks for choosing us.

USER: Thanks for your help.