You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in flight ticket booking process from LGA to ATL?

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Is there any connection limit?

USER: I will prefer 1 break in between my journey.

ASSISTANT: Let me know your travelling dates.

USER: Thank you for your response, I want to take off on Apr 18 and book my return ticket also on Apr 20.

ASSISTANT: Do you have any preference?

USER: No.

ASSISTANT: Can I know your name?

USER: Sure, my name is Janet Taylor.

ASSISTANT: Found ticket with Delta airlines for price 200.

USER: I would like to return in evening time so please check with this also.

ASSISTANT: Sorry, no flights found.

USER: It's ok, no problem.

ASSISTANT: Thank you.