You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you now?

USER: I am Patrica Wilson.

ASSISTANT: Thanks for providing your name.

USER: As my plan to travel from Detroit to Austin to participate in heath camp as a volunteer conducted by WHO, can you help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your airport codes?

USER: I wish to start on MI-DTW to reach TX-AUS.

ASSISTANT: Can you please let me know your travelling dates?

USER: I will depart on 08/17 and I intend to return on 08/19.

ASSISTANT: Do you need any connection limit?

USER: Yes, I need a connection.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is a no flight found on single connection limit.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for connecting us and have a great day.