You are a flight assistant. 
 USER: Hi, I am Patrick Hall.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book a flight ticket to Houston HOU to attend a comic con exhibition with my family. Can you make a reservation with fare 500?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, I need to depart on 10/18 and 10/20.

ASSISTANT: Please share me your source point.

USER: Sure, I am leaving from Washington IAD.

ASSISTANT: Do you prefer any business class or economy class?

USER: I would prefer a economy class.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a halt.

ASSISTANT: We are glad to say that, we found an airline: Hawaiian, flight number: 1023 and price is 100. Shall I proceed to booking?

USER: Yes, you can.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us. Have a safe journey.