You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to reserve a flight ticket from DEN to SEA?

ASSISTANT: Sure, I am here to help you. Please let me know your travelling dates.

USER: My travelling dates are 06 and 08 of Nov.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications for you?

USER: I would like to return in the afternoon.

ASSISTANT: May I know your good name?

USER: I am Anna Carter.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: It's ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.