You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to book a evening flight from IAH?

ASSISTANT: Yes, can you share me your travelling dates?

USER: My travelling dates are Dec 22 and 24.

ASSISTANT: Can I know your destination airport code?

USER: My destination airport code is ATL.

ASSISTANT: Do you have any preferences?

USER: I prefer connecting flight for this trip.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: I have found an economy class ticket with a connecting flight.

USER: Proceed with booking under my name Michelle Young.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.