You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me in doing a reservation from CLT to DEN?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: My trip dates are Dec 06 to 08.

ASSISTANT: Do you prefer direct or single connected flight?

USER: I need a connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: I prefer economy class which depart in morning.

ASSISTANT: Can I have your good name please?

USER: Larry Gonzalez here.

ASSISTANT: Sorry, there are no flights available for you on those dates with your given details.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.