You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you today?

USER: Can you please help me in booking my flight ticket from EWR to DCA?

ASSISTANT: Sure, can you share me your trip dates?

USER: My planned travel dates are Aug 22-24.

ASSISTANT: Do you have any connection limit?

USER: I prefer to fly in connected flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: I am Gregory Brown.

ASSISTANT: Sorry, no flights are found on your travel dates.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching us.