You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Edwards.

ASSISTANT: How can I aid you?

USER: I would like visit national gallery of art at Washington DC - IAD. Can you please help me with book a single connection of flight?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are 06/02 to 06/04.

ASSISTANT: Where would you like to start from?

USER: I would like to start from Orlando, FL - MCO.

ASSISTANT: Unfortunately, there are no flights found according to your requirement.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for consulting us.