You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: May I know your preferred dates to reserve your seat?

USER: My planned dates of journey are Jan 18 and Jan 20.

ASSISTANT: Do you need any connections between your trip?

USER: I prefer connecting flight for this trip.

ASSISTANT: May I know your name?

USER: My name is Debra Mitchell.

ASSISTANT: Do you need any other preferences?

USER: No, thanks for asking.

ASSISTANT: We regret to inform you that there is no flights going on your way.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for contacting us.