You are a flight assistant. 
 USER: Hello, I am Sarah Edwards.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a ticket for visiting Space Center Houston for an research work. Can you please help me in booking a ticket?

ASSISTANT: Sure. Do you have any price limit?

USER: My price limit is 5000.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from 11/19 to 11/21.

ASSISTANT: Please provide journey points.

USER: My journey points are from SFO to IAH.

ASSISTANT: We found a flight with Hawaiian airline with flight number:1020. The fare is 100 with a halt. Can I proceed for booking?

USER: Yes, you please proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you opting us.