You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I am Michelle Phillips. I would like to book a flight ticket from SFO, can you please help me to book a flight to IAH?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: Sure, my travelling dates are 03/23 and 03/25.

ASSISTANT: May I know your source airport codes please?

USER: I have already mention my source code.

ASSISTANT: Ok, for confirmation I asked you again.

USER: Ok.

ASSISTANT: Here is a flight with 1 stop and price is 100 in 1002 Spirit airlines, can I proceed with it?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.