You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you aid me to book my ticket from LAX to DTW?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: My trip dates are Dec 7 and Dec 9 respectively.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer for single connecting flight.

ASSISTANT: Could you help me with your name please?

USER: Richard Hall here.

ASSISTANT: Sorry, there is no flight available for the mentioned dates.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.