You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I would like to prefer a economy class for my business trip to Philadelphia. So can you book the flight ticket for me?

ASSISTANT: Sure, may I know your airport codes?

USER: The airport codes are from LAS to PHL.

ASSISTANT: Kindly, mention your planned trip dates.

USER: My travel dates are from Apr 30 to May 02.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection flight.

ASSISTANT: Can you please share your airline preference with us?

USER: No more preferences. You can search for the flight.

ASSISTANT: May I know your good name to proceed further?

USER: I am Jerry Wright.

ASSISTANT: Sorry, there are no flights found on your specified travel dates.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for availing us.