You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for the day?

USER: Can you please book a flight ticket from EWR to DTW?

ASSISTANT: Sure, help me with the trip dates?

USER: Thank you. I have planned my travel dates as Apr 15 and Apr 17.

ASSISTANT: May I know your name for the booking process?

USER: Sure, myself Sarah Taylor.

ASSISTANT: Let me know your specifications to be met?

USER: I would like to depart in afternoon time so please make sure that.

ASSISTANT: Sorry, no flights found in your desired routes.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us. Have a nice day.

USER: Most welcome.