You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you at this moment?

USER: I am Karen Smith, can you help me to book a flight from ATL to ORD?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates dates are 11/11 and 11/13.

ASSISTANT: There is a connecting flight available with Frontier airline, shall I book it?

USER: Proceed with booking.

ASSISTANT: Your booking is done with flight number 1003. Happy journey.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a nice day.