You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Rachel Lewis here. Can you please check for the flights on the route from DTW to DEN? As I need to attend a wedding.

ASSISTANT: Sure, may I know your preferred dates of travel?

USER: My journey dates are from Sept 1st to Sept 3rd.

ASSISTANT: Do you have any class preference?

USER: Any class will be ok for me.

ASSISTANT: Is there any connection limit?

USER: Yes, 1 connection will be ok.

ASSISTANT: Can I know your depart and arrival timings?

USER: My return time is in morning.

ASSISTANT: Ok, please wait a minute.

USER: Take your own time.

ASSISTANT: Sorry, there were no flights found on your specified time.

USER: Oh! That's ok. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.