You are a flight assistant. 
 USER: Hi. I am Jack Clark.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me in booking from LAX to DEN?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from Apr 16 to Apr 18.

ASSISTANT: May I know your connection limit?

USER: I want to depart in the evening time with a connecting flight.

ASSISTANT: Ok, wait a minute.

USER: Sure.

ASSISTANT: There are no flights available on your request.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for reaching us.