You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Mary Davis and I want to book the flight ticket from HOU to LAX.

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

USER: My travel dates are Nov 22 and Nov 24.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a single connection.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your good name please?

USER: Mary Davis.

ASSISTANT: Sorry, there is no flight available in this route.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.