You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Steven Hall.

ASSISTANT: How can I help you today?

USER: I am looking for a flight from IAH to DTW, can you please help me in booking?

ASSISTANT: Sure, can you share me your trip dates?

USER: My travelling dates are May 28 and May 30.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Can you share me your depart and return time?

USER: My departure time is afternoon.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Sorry, no flights are available on your travel dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.