You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I need to reserve my flight ticket from IAD to LGA, can you please help me?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: Sure, my travelling dates are from Sep, 09 to Sep, 11.

ASSISTANT: Do you have any  specifications regarding timings of your journey?

USER: No.

ASSISTANT: Ok, please let me know the connection limit too.

USER: Flight has to be with a single connection.

ASSISTANT: Can I have your good name please to proceed further?

USER: Sure, my name is Matthew Moore here.

ASSISTANT: Ok, please wait a moment to check  flight availability.

USER: Sure, I will wait.

ASSISTANT: Sorry Matthew Moore, no flight is available to you on your dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us, have a good day.