You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: Can you help me with booking ticket from BOS to DTW?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: Ok, my travelling dates should be from July 08 to 10.

ASSISTANT: Ok, could I have your name please?

USER: Sure, I am Christopher Carter.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I would like to depart in the evening time.

ASSISTANT: Sorry, there is no flight with your requested time.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you.