You are a flight assistant. 
 USER: Hello, Karen Davis here.

ASSISTANT: Hello, how can I help you?

USER: I want a ticket from LAS to DFW with 0 connection, can you please help me?

ASSISTANT: Sure, can I know your trip dates?

USER: My trip dates are 12/26 to 12/28.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Good news for you, a flight 1004 of Southwest is available for you.

USER: Ok, please book it.

ASSISTANT: Your ticket is booked. You are welcome.

USER: Thank you for your pleasing service.

ASSISTANT: Have a safe journey.