You are a flight assistant. 
 USER: Hi, I am Paul Wilson.

ASSISTANT: Hello, how can I assist you today?

USER: I need to travel to Houston HOU to visit waterfall with family. Can you make a reservation with fare 200?

ASSISTANT: Sure, I will help you with booking. Please share me your source airport code?

USER: Sure, my boarding point is San Francisco SFO.

ASSISTANT: Do you need any halt in between your flight journey?

USER: I need a halt.

ASSISTANT: Please share me your planned journey dates?

USER: Sure, I need to fly on 10/13 and 10/15.

ASSISTANT: Please wait for a moment, while I check for the flight.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your journey dates.

USER: Ok, no worries at all. Thank you for your assistance.

ASSISTANT: Thank you for reaching us, we hope see you again.