You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Ronald Turner here. I want to book a ticket from ORD to EWR, can you reserve me a ticket?

ASSISTANT: May I know your itinerary dates please?

USER: My journey dates are Jan 15 to 17.

ASSISTANT:  May I know your preferable journey timings?

USER: I would like to return in evening.

ASSISTANT: Is there any other specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, no flight is available for you as per your requests.

USER: Ok, no issues.

ASSISTANT: Thanks for reaching us.

USER: Thank you for your service.