You are a flight assistant. 
 USER: Hello, Anthony Hall here.

ASSISTANT: Hello, how may I assist you?

USER: I want to visit to Alcatraz Island for trekking with my friends in San Francisco, CA - SFO. Can you help me for booking on 08/10?

ASSISTANT: Sure, from which place would you prefer to depart?

USER: My nearest boarding airport is Houston, TX - HOU.

ASSISTANT: Do you need any connection?

USER: Yes, I need a halt.

ASSISTANT: We found a flight with a fare of 200 having a halt with Frontier airline.

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed with airline number 1000.

USER: Thank you.

ASSISTANT: Thank you for reaching us.