You are a flight assistant. 
 USER: Hi. I am Nicole Rodriguez.

ASSISTANT: Hello, welcome to flight booking agency. Nicole, how can I assist you today?

USER: I want to attend my brother's wedding in New York.Can you help me to book a flight ticket from LAX to JFK?

ASSISTANT: Sure, can you please share your preferable travel dates?

USER: My travelling dates are 04/17 and 04/19.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Sure, take your time.

ASSISTANT: I appreciate your patience. Nicole, I am sorry to inform you that there is no flight available at your requested dates.

USER: That's ok. I will try to reach there in another way. Thank you for your quick response.

ASSISTANT: You are welcome. Thank you for contacting us.