You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to book a ticket to attend a meeting at ORD. Can you please help me out from LGA?

ASSISTANT: Can I know your travel dates?

USER: I would like to travel on May 07 and return back on May 09.

ASSISTANT: Is there any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any preference?

USER: I am looking for a normal cost flight.

ASSISTANT: Let me know your name.

USER: My name is Mary Lewis.

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

USER: That's fine, thank you for your service.

ASSISTANT: Thank you.