You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Michelle Martinez.

ASSISTANT: How may I assist you?

USER: I need a flight ticket booking from JFK to LAS to attend a birthday party, so can you please help me with flight ticket booking?

ASSISTANT: Sure, may I know your travel dates?

USER: I have planned my travel dates on June 7th and I will return back in June 9th.

ASSISTANT: Do you prefer economy or business class?

USER: I can travel in any flight.

ASSISTANT: Do you have any specifications?

USER: I need a flight which will start in the evening time with a one drop in my journey.

ASSISTANT: Sorry, there is no flight on your details.

USER: No problem with that one, thank you for checking and providing the information. I can prefer any other source to travel.

ASSISTANT: Thank you.