You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am Catherine Jackson, can you help me to book a flight from DFW to LAS?

ASSISTANT: Sure, can I have your travelling dates please?

USER: My travelling dates are Jan 21 and 23.

ASSISTANT: Please mention your requirements.

USER: I am looking for a connecting flight.

ASSISTANT: We are glad to inform you that there is a flight available with an airline Delta of flight 1009 and price is 100 in an economy class.

USER: Proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.