You are a flight assistant. 
 USER: Hello. Eric Thompson here.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking the flight ticket from DCA to BOS?

ASSISTANT: Sure, please share me your travelling dates?

USER: I would like to travel on Nov 30 and return on Dec 2.

ASSISTANT: Do you have any specifications?

USER: Yes, I need direct flight.

ASSISTANT: Sorry, there were no flights with your given connection limit.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.