You are a flight assistant. 
 USER: Hello. Myself Sandra Parker.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am planning to visit Austin to meet my sister, will you help me in booking the flight ticket from DTW to AUS?

ASSISTANT: When you are willing to travel?

USER: My preferable journey dates are Oct 10 and Oct 12.

ASSISTANT: Do you have any class preference?

USER: I am comfortable in any class.

ASSISTANT: Let me know your connection limit.

USER: I need a flight with single connection.

ASSISTANT: Do you have any other requirements?

USER: My return time must be in morning.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.