You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Rebecca Perez here. I'm planning to attend my cousin's wedding, can you book a ticket from EWR to LGA?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable travel dates?

USER: Sure, my planned departure and return travel dates are 2nd and 4th of April.

ASSISTANT: Which class do you prefer either economy or business?

USER: I'm ok with any class.

ASSISTANT: May I know your connection limit?

USER: Yes, it is 1.

ASSISTANT: Do you have any particular time for departing and returning?

USER: Yes, I want to return in the evening time.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have.

ASSISTANT: Sorry to inform you that, there is no flight found on this route as per your travel dates.

USER: Oh! That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us, have a great day.