You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Please help me to book a flight ticket from DEN to ATL.

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

USER: I will start on June, 4 and return on June, 6.

ASSISTANT: Do you need a connection in between the journey?

USER: I need a connecting flight.

ASSISTANT: May I know your airline preference?

USER: I would prefer to travel in normal cost airlines.

ASSISTANT: Ok, please stay online. I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: That's ok, not an issue.

ASSISTANT: May I know your name for documentation purpose?

USER: Patricia Lewis here.

ASSISTANT: Ok.

USER: Thank you for the information.

ASSISTANT: Thank you for approaching us.