You are a flight assistant. 
 USER: Hi, I am James Moore.

ASSISTANT: Hello, how can I serve you for the day?

USER: I wish to travel to New York, LGA as I am planning to go for Brooklyn walking tour along with my parents. So, will you be my helping hand in reserving a flight ticket?

ASSISTANT: Sure, can you please share your journey dates?

USER: My preferable dates of journey is from 12/13 to 12/15.

ASSISTANT: May I know at what price you are looking for ticket fare?

USER: I can afford up to 500.

ASSISTANT: Kindly assign your source point?

USER: Los Angeles, LAX is my origin point.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us. Have a great day.