You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I have a plan to visit LGA. Can you help me in booking flight ticket from LAX?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My trip dates are June 17 to June 19.

ASSISTANT: Can I know your name please?

USER: George Young.

ASSISTANT: Do you need any specifications?

USER: I need a connecting flight in economy class.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.