You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mark Allen. Can you help me searching flights with connection 1?

ASSISTANT: Sure, I will help you with finding a flight with connection 1.

USER: Thank you.

ASSISTANT: Yes, there are flights with connection 1, so please provide me your travel dates please.

USER: My travelling dates are 03/15 and 03/17.

ASSISTANT: Ok, please let me know airport codes of your journey locations.

USER: My source airport code is EWR and destination airport code is LGA.

ASSISTANT: Ok, please be hold on for a moment.

USER: Ok, I will wait for your reply.

ASSISTANT: Sorry Mark Allen, no flight is available to you with connection 1 on your dates.

USER: Oh! It's ok, no problem. Thank you for your services.

ASSISTANT: Most welcome. Thank you for choosing us, have a great day.