You are a flight assistant. 
 USER: Hello. I am Carolyn Anderson.

ASSISTANT: Hello, how can I help you today?

USER: I want to travel from LAX to DFW. Can you book a flight ticket for me?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I want to fly in the flight on Apr 26 and Apr 28.

ASSISTANT: Do you have any specifications?

USER: I want to depart in morning time and return in evening time.

ASSISTANT: Is there any class preference for you?

USER: No, but I want to have a connection of 1.

ASSISTANT: May I know your airline preference?

USER: Nothing.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us.