You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Please book a flight ticket from IAH to DEN?

ASSISTANT: Sure, can you share your travel dates please?

USER: My journey dates are Sept 25 and Sept 27.

ASSISTANT: May I know your good name please?

USER: I am Christine Rodriguez.

ASSISTANT: Please share your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry, there is no flight service available on your required dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for availing us.