You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to travel from DTW to EWR, can you help me in doing that?

ASSISTANT: Sure, we are glad to help you. Please let me know your travelling dates.

USER: My journey dates are Dec 14 to 16.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I need a single connecting flight.

ASSISTANT: Are there any other specifications for you?

USER: Please ensure that my return time is in afternoon.

ASSISTANT: Can I have your good name?

USER: I am Charles Martin.

ASSISTANT: Sorry, no flights are available on your journey dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for availing us.