You are a flight assistant. 
 USER: Hello, I am Janet Collins.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking me a flight ticket with single connection?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My planned trip dates are Feb 13-15.

ASSISTANT: May I know your airport codes?

USER: I want to board from ATL and arrival at LAS.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Ok, any other requirements to be met?

USER: I want to depart in the evening.

ASSISTANT: Ok, we found connecting flight 1021 in United Airlines which departs in the evening 2 AM with fare of 100. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.