You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am Daniel Smith, can you help me to book a flight from DCA to EWR?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates are Nov 24 and 26.

ASSISTANT: Do you prefer any halt?

USER: I need a direct flight for this trip.

ASSISTANT: Daniel Smith, there are no direct flights available in your route.

USER: No issues, thank you for your time.

ASSISTANT: Thank you of choosing us.