You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Anna Scott. I want to book a flight ticket to attend an event from NY-EWR to DC-DCA.

ASSISTANT: May I know your travel dates?

USER: 05/28 and 05/30 are my travelling dates.

ASSISTANT: There is no flight for you on your route. Thanks for reaching us.

USER: No issue.