You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me in reserving a flight from SFO to reach all the places at DEN?

ASSISTANT: Can I know your travelling dates?

USER: Thank you, I would like to start on Nov 2nd and return on Nov 4th.

ASSISTANT: May I know your connection limit?

USER: I prefer a flight with single connection.

ASSISTANT: Do you need any other preference?

USER: I don't have any other preferences.

ASSISTANT: Can I know your name please?

USER: Nicole Mitchell is my name.

ASSISTANT: Sorry to inform you that there are no flights available.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for contacting us.