You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to travel from PHL to LAS. Can you please make a reservation for me?

ASSISTANT: Sure, let me know your travel dates?

USER: Sure, I want to start my journey on Aug 16 and need to end it on Aug 18.

ASSISTANT: Would you like any break in your journey?

USER: I do not have any specifications in connection.

ASSISTANT: Any other preference?

USER: Yes, I prefer an normal-cost airline to travel.

ASSISTANT: Ok, can you share your name to proceed further?

USER: Daniel White here.

ASSISTANT: Sorry, no flights found as per your request.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for contacting us.