You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to travel from LAS to PHL, can you help me in doing that?

ASSISTANT: Sure, we are glad to help you. Can you please let me know your travelling dates?

USER: My journey dates are Mar 15 to 17.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications for you?

USER: Please ensure that my depart time is in afternoon.

ASSISTANT: Can I have your good name?

USER: I am Nicholas Hall.

ASSISTANT: Sorry, no flights are available on your journey dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for availing us.