You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book a ticket from IAD to JFK to attend Science festival?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are May 4 and May 6.

ASSISTANT: May I know your connection limit?

USER: I want single connected flight.

ASSISTANT: May I know your good name?

USER: I am Janet Johnson.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for reaching us.