You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I am Jennifer King, I want to book a flight to New York, NY-JFK to visit my grand father after long time. Can you book a connecting flight?

ASSISTANT: Sure, May I know the source code?

USER: My source point is Austin, TX-AUS.

ASSISTANT: Please help me with your travel dates.

USER: I will fly on 06/12 and return on 06/14.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Thank you for the information.

ASSISTANT: Thank you for availing us.