You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Justin Campbell.

ASSISTANT: Justin, how can I assist you?

USER: I would like to travel from DTW to AUS to meet my friend, can you help me for booking a flight ticket?

ASSISTANT: Please share your travel dates.

USER: My travelling dates are from 04/26 till 04/28.

ASSISTANT: Please hold on for a while. Sorry, no flight found.

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

ASSISTANT: Thank you for contacting us.