You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: Jeffrey Wilson here. I want to attend a seminar on spirituality at New York, so please book my ticket from Washington DC.

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My itinerary dates are 05/18 and 05/20.

ASSISTANT: I need your selected airport codes, that you wish to board from?

USER: My genesis and terminus airport codes are IAD and JFK.

ASSISTANT: I am sorry no flights found on your route.

USER: No problem, I will find an alternative way to travel.

ASSISTANT: Thank you for your positive response.

USER: Thank you for your service.

ASSISTANT: Your welcome.