You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Kenneth Collins. I want to book a flight ticket from DTW to HOU, so please help me in booking a flight ticket.

ASSISTANT: Sure, I will help you. Can you please share your planned journey dates?

USER: I would like to fly on Dec 11 and return on Dec 13.

ASSISTANT: Do you have any connection preference?

USER: Yes, I need a single connection.

ASSISTANT: May I know your departure and arrival timings?

USER: I would like to depart in morning time.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Kenneth Collins, no flights has been found on your preferences.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.