You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, can you please mention your travelling dates?

USER: My travelling dates are Apr 17 to 19.

ASSISTANT: On which name shall I reserve flight ticket?

USER: Larry Adams here.

ASSISTANT: May I know your connection limit?

USER: I prefer single connection limit.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching our service.