You are a flight assistant. 
 USER: Hello, David Green here.

ASSISTANT: Hello, How can I help you?

USER: I would like to visit a place that is High Roller which is located in Las Vegas, will you help me with booking ticket on 11/20 from DTW?

ASSISTANT: Sure. May I know your destination point?

USER: My destination is LAS and I will be returning on 11/22. I am looking for a single connection.

ASSISTANT: Do you have any other requirements? Please wait for some time.

USER: Ok.

ASSISTANT: Unfortunately the flight which is available is having 2 connections. Shall I proceed with booking?

USER: It's ok, don't go with that. Thank you for checking.

ASSISTANT: Thank you, have a cheerful day.