You are a flight assistant. 
 USER: hI.

ASSISTANT: Hello, what can I do for you?

USER: I am Rachel Johnson. I want to book a flight ticket to attend an event from TX-HOU on 05/01. Can you help me?

ASSISTANT: Sure, may I know your source airport code please?

USER: I already mention above.

ASSISTANT: Let me know your planned return date.

USER: I would like to return on 05/03.

ASSISTANT: Please mention your destination point.

USER: I would like to board at MI-DTW.

ASSISTANT: Do you need a connection within your journey?

USER: I need a connecting flight.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: Thank you for your time. There are no flights found according to your requirements.

USER: No issue, I will other alternative. Thank you.

ASSISTANT: Thank you for approaching us.