You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: Can you please help me in booking a flight ticket from SFO to DEN?

ASSISTANT: Sure, May I know the travelling dates?

USER: My trip dates are 11/15 - 11/17.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection.

ASSISTANT: Is there any other requirements?

USER: I need a normal - cost airline.

ASSISTANT: May I know your name?

USER: Joseph Adams here.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.