You are a flight assistant. 
 USER: Hello, I am Gary Taylor.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend a seminar in Charlotte, so please help me in booking a flight ticket from Detroit.

ASSISTANT: Sure, we are here to help you. Let me know when you are willing to travel?

USER: I would like to fly on 09/19 and return on 09/21.

ASSISTANT: Can you share me your source point and destination point?

USER: My airport codes are MI - DTW, NC - CLT.

ASSISTANT: Do you need any halts in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Ok, wait for some time I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there is no flights found on your details.

USER: Not an issue. Thank you.

ASSISTANT: Thanks for approaching us.