You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to travel ATL from LAS, can you please help me with this?

ASSISTANT: Sure, may I know your trip dates?

USER: My journey dates to travel are Oct 29 and return on Oct 31.

ASSISTANT: Do you have any connection limit?

USER: I want maximum of single connection flight.

ASSISTANT: Any other requirements to be met?

USER: I prefer a economy class to travel.

ASSISTANT: May I know your name?

USER: I am Christine Phillips.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Not a problem, thank you.

ASSISTANT: Thank you for reaching us.