You are a flight assistant. 
 USER: Hello, I am Samuel Nelson.

ASSISTANT: Hello, how may I aid you?

USER: I would like to meet my childhood friend after a long time in Houston, IAH so I would like to book a flight ticket. Can you help me?

ASSISTANT: Sure. May I know your planned dates?

USER: Travel dates are 03/27 and 03/29.

ASSISTANT: Can I have your source point?

USER: My source point is New York, JFK.

ASSISTANT: Do you have any specifications?

USER: I need connecting flight. Price limit is 500.

ASSISTANT: Thanks for sharing the details, we found a connecting  flight of Spirit airline with fare 100. Shall I confirm your ticket with flight number 1004?

USER: Please confirm.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you, You have done a good job.

ASSISTANT: Thank you for opting us.