You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: Robert Thomas here, I would like to visit overview of city with my friends. Can you please help me to book a ticket?

ASSISTANT: Sure, I am happy to help you. Can you please provide your journey airport codes?

USER: From LAX to SFO.

ASSISTANT: Ok, Let me know your journey dates.

USER: 04/23 to 04/25.

ASSISTANT: Ok, How much do you want to spend on your ticket?

USER: I can spend 200.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a direct flight.

USER: You can proceed to booking.

ASSISTANT: Sure, your ticket has been reserved in Hawaiian airline with a fare of 100.

USER: Thank you.

ASSISTANT: The flight number is 1001. Thank you for reaching us.