You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please reserve me a flight ticket from DTW to ATL?

ASSISTANT: Sure, I will help you. Can you please share me your travelling dates?

USER: My trip dates are 09/20 - 09/22.

ASSISTANT: Ok, please mention your name.

USER: Emma Collins here.

ASSISTANT: Ok, do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Ok, do you have any other specifications?

USER: My return time should be in the morning.

ASSISTANT: Sorry, no flights are available on your route.

USER: Not a problem, thank you.

ASSISTANT: Welcome, have a nice day.