You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am Ashley Miller. Can you please find a flight for me from Los Angeles to Philadelphia? Because I have to attend a meeting in the office.

ASSISTANT: Sure. May I know your travelling dates please?

USER: Thank you. My travelling dates are 02/20 and 02/22.

ASSISTANT: Do you have any requirements to met?

USER: Yes, I need a flight with the ticket fare 200 or less.

ASSISTANT: Kindly, share your airport codes to proceed further.

USER: The source and destination airport codes are LAX and PHL.

ASSISTANT: Please, wait for a moment.

USER: Ok, take your time.

ASSISTANT: Thank you for your time, there is a flight available in Spirit airline, flight number 1006 having fare 100 and a lay by.

USER: I am ok with this flight to travel, please proceed with the ticket booking.

ASSISTANT: Your reservation has been processed in economy class.

USER: Thanks a lot for your help in booking a flight ticket.

ASSISTANT: Thank you for availing us.