You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Stephen Lewis, help me to book a flight on 02/29 to visit Houston for vacation. I will return on 02/03.

ASSISTANT: Sure, please share me your airport codes?

USER: I will return on 03/02. My source point is NY-JFK and destination is IL-ORD.

ASSISTANT: Thanks for providing your details. We found 1010 Delta airline with single connection and price of 100. Shall I proceed with booking?

USER: Sure.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.