You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Paul Scott here.

ASSISTANT: How can I aid you today?

USER: I am planning to meet my colleagues in DTW, can you please book a flight ticket from CLT?

ASSISTANT: Please share your travelling dates.

USER: I would like to depart on June 14th and return on June 16th.

ASSISTANT: Do you need any connection limit?

USER: I prefer to travel in an economy class. I need a flight with single connection.

ASSISTANT: May I know your preferable timings?

USER:  I am ok with any time.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: Sorry to inform you that there is no flights available on your routes.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.