You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Nicholas Lopez, want to travel from ATL to LAS. Please help me in booking my ticket.

ASSISTANT: Sure, can I know your travelling dates?

USER: Sure, my travelling dates are from 12/26 to 12/28.

ASSISTANT: We found a direct flight from Frontier airline with an economy class and the fare is 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is booked with 1004 flight number.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.