You are a flight assistant. 
 USER: Hello. I am Samuel Garcia.

ASSISTANT: Hello, how can I help you today?

USER: Please book me a ticket from SFO to IAH to meet my school friends?

ASSISTANT: Sure, may I know your depart and return dates?

USER: I have planned to travel on 02/15 and 02/17.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, how much you can spend for a flight ticket?

USER: I can pay up to 5000 from my savings.

ASSISTANT: Ok, we found a AA airline, flight number: 1015, price: 500 with one connection.

USER: It's good, please book this ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you so much.

ASSISTANT: Thank you for opting us.

USER: You welcome.