You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking from PHL to LAS?

ASSISTANT: Sure, may I know your planned travelling dates?

USER: My travelling dates are from Aug 1 to Aug 3.

ASSISTANT: For further proceeding, may I know your good name?

USER: My name is Jennifer Clark.

ASSISTANT: Would you like to take break in between your journey?

USER: I need a direct flight only.

ASSISTANT: Do you have any specific time preference for journey?

USER: No.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Sorry to inform you that, there is no flight found as per your travelling details.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for reaching us.