You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me to book a evening flight from my origin?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are June 16 and 18.

ASSISTANT: Could you please help me with the airport codes?

USER: My airport codes are DTW and AUS.

ASSISTANT: May I know your connection limit?

USER: I am fine with any connection.

ASSISTANT: Do you have any other specification that you are looking for?

USER: No.

ASSISTANT: May I know your name to proceed further?

USER: My name is Catherine Thompson.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for contacting us.