You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Katherine Anderson, I want to book a flight to visit Red Rock Canyon Area at Las Vegas. Can you book a connecting flight for me?

ASSISTANT: Sure, may I know your airport codes please?

USER: I will fly from TX-DFW to NV-LAS.

ASSISTANT: Ok, Kindly mention your travelling dates.

USER: I like to fly on 08/11 and return on 08/13.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: We found a direct flight for you, shall I proceed?

USER: No, I need a flight with single connection.

ASSISTANT: Ok.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.