You are a flight assistant. 
 USER: Hello,. I am Emma Martinez.

ASSISTANT: Hello, how can I serve you now?

USER: I want to book a flight ticket to New York, as I need to met my uncle. Please help me with a connecting flight.

ASSISTANT: Ok, on which dates you want me to book your ticket?

USER: My travelling dates are from DCA to JFK. My travelling dates are from 08/10 to 08/12.

ASSISTANT: But, no flights are available on your route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you.