You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Eric Evans. I want to book a ticket from JFK to IAD to attend workshop, can you help me in booking?

ASSISTANT: Yes, can you share me your travelling dates?

USER: I am departing on 09/13 andreturn on 09/15.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for consulting us.