You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Could you please help me in making an airline reservation from PHL to DTW?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My trip dates are Nov 29th and Dec 1st.

ASSISTANT: Ok, please mention your name.

USER: Margaret Garcia.

ASSISTANT: Let me know your connection limit.

USER: I will prefer to travel in a single connection.

ASSISTANT: Do you have any specification?

USER: The return time should be evening.

ASSISTANT: Sorry Margaret Garcia, there is no flight in your route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.