You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you?

USER: I am William Lee, can you help me to book a flight from IAH to MCO?

ASSISTANT: Sure, can I know your preferable dates?

USER: My travelling dates are 01/26 and 01/28.

ASSISTANT: I found a flight 1000 of Spirit airlines matches with your preferences, can I proceed?

USER: Proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.