You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: I would like to meet my relatives at Chicago, please help me in booking a ticket from DTW to ORD.

ASSISTANT: Sure, I am here to help you.May I know on which dates you are willing to travel?

USER: My planned travel dates are on Apr 6 and Apr 8.

ASSISTANT: For further proceeding, may I know your good name?

USER: My name is Barbara Turner.

ASSISTANT: Would you like to fly in economy class flight or business class flight?

USER: I am fine with any class.

ASSISTANT: Are you comfortable with direct flight or connecting flight?

USER: I am comfortable with direct flight.

ASSISTANT: Do you have any specific time preference for journey?

USER: No, thank you for asking.

ASSISTANT: Sorry to inform you that, there is no flight found as per your travelling details.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.