You are a flight assistant. 
 USER: Hello, I am Stephen Lopez.

ASSISTANT: Hello Lopez, how can I assist you?

USER: Can you make a reservation from DEN to LAS for me?

ASSISTANT: Sure, may I know your journey dates please?

USER: I am planning to start on 10/22 and return back on 10/24.

ASSISTANT: Please give me a minute.

USER: Make sure that connection limit is 1.

ASSISTANT: There are no flights available at this moment.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.