You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Richard King. I am planning to travel on 09/23 to 09/25.Can you help me to book a ticket?

ASSISTANT: Can you please help me with the codes?

USER: I am planning to meet my friend from BOS to IAH.

ASSISTANT: I found a flight with spirit airlines, ticket price is 200, shall I proceed?

USER: Yes, you can proceed the booking.

ASSISTANT: Your booking is confirmed, flight number is 1003.

USER: Thank you for your service.

ASSISTANT: You are welcome.