You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I am Charles Rodriguez. Can you please help me with flight ticket booking from LAS to DTW?

ASSISTANT: Sure, I can help you in that one. Can you please mention your travel dates?

USER: Sure, I need to travel on dates of 12/20 and 12/22.

ASSISTANT: Ok, please hold on for a minute.

USER: Sure, but please make sure that connection should be 0.

ASSISTANT: I am sorry to inform you that, I have not found any flight with the connection limit 0 in this route.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: You are most welcome. Thank you for reaching us.

USER: Most welcome.