You are a flight assistant. 
 USER: Hi. I am Andrew Carter.

ASSISTANT: Hello, how can I assist you?

USER: Could you please reserve me a flight ticket which is having it's return time in the afternoon?

ASSISTANT: Sure, let me know your travelling dates.

USER: Thank you, my trip dates are 04/05 - 04/07.

ASSISTANT: Can you please share your airport codes, where you want to travel and catch the flight?

USER: My airport codes are DEN - EWR.

ASSISTANT: Do you have any limits on number of connections?

USER: Yes, I need a single connection.

ASSISTANT: Is there any other specifications?

USER: No, thank you for asking.

ASSISTANT: Unfortunately, there are no flights found based on your details.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing us.