You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am planning to visit the Top of the Rock observation deck in New York, LGA. Can you avail me to book a connecting flight?

ASSISTANT: Let me know your travelling dates.

USER: My travel dates are May 12 and 14.

ASSISTANT: Can I know your boarding airport code?

USER: I want to board from Atlanta, ATL.

ASSISTANT: Do you have any preference?

USER: I want to return in the evening time.

ASSISTANT: Let me know your name.

USER: Sure, Carol Taylor here.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you.