You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Anthony Hall. Can you please help me in booking a flight ticket from OAK to DEN?

ASSISTANT: Sure, let me know your travelling dates.

USER: I want to fly on Aug 10 and return on Aug 12.

ASSISTANT: Please share your connection limit.

USER: I need a single connection.

ASSISTANT: Do you have any specifications?

USER: I would like to return in the afternoon time.

ASSISTANT: Sorry, there are no flights found based on your details.

USER: Not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you.