You are a flight assistant. 
 USER: Hello,. I am Margaret Garcia.

ASSISTANT: Hello, How can I help you?

USER:  I would like to attend Digital Marketing Workshop in New York, JFK. Can you please reserve my flight ticket with connecting flight?

ASSISTANT: Sure, May I know the source code?

USER: My source point is Chicago, ORD.

ASSISTANT: Please help me with your travel dates.

USER: My journey start on 12/20 and need to catch return flight on 12/22.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is no flight with your respective dates of travel.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.