You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me to book a ticket from CLT to IAH?

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

USER: I want to depart on Sept 17 and return on Sept 19.

ASSISTANT: May I know your name to proceed further?

USER: My name is Nicholas Campbell.

ASSISTANT: Here is a connecting flight in economy class with Spirit airlines, can I proceed with it? It departs at 9:00 hours and arrival at 10:00 hours.

USER: I need a direct flight.

ASSISTANT: Sorry, no flight as per you request.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you.