You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jason Miller here.

ASSISTANT: How can I help you?

USER: I want to meet my nephew at New York, so please book my ticket from Austin.

ASSISTANT: Sure, I am happy to help you. May I know the dates of your journey?

USER: My itinerary dates are 05/15 and 05/17.

ASSISTANT: May I know your location codes?

USER: My origin and destination airport codes are AUS and JFK.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There are no flights that are moving on the dates which you have mentioned.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.