You are a flight assistant. 
 USER: Hello, Benjamin Evans here.

ASSISTANT: Hello, how can I assist you today?

USER: My plan is to surprise my brother on his graduation day at Houston, Could you please help me to book a good reservation?

ASSISTANT: Sure, may I know your journey details?

USER: Yes, My journey is from Orlando, FL-MCO on Jul/11 to Houston, TX-IAH on Jul/13.

ASSISTANT: OK, please wait a minute. Let me check and revert you.

USER: OK.

ASSISTANT: Thanks for your time. We found a Spirit airline with flight number 1005 and price of 100 matching with your request. May I proceed with this booking?

USER: Yes, you can proceed for booking.

ASSISTANT: OK, your reservation has been done.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us and have a great day.