You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please book a ticket from PHX to DEN to attend Film festival?

ASSISTANT: Sure, when do you want to start and return on?

USER: My travelling dates are June 11 and June 13.

ASSISTANT: Do you need a connecting flight ?

USER: I want a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: I am Lisa Harris.

ASSISTANT: Thank you for your details, there is a flight 1000 in class economy which is in Southwest airline.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.