You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in doing a reservation from PHL to LAS?

ASSISTANT: Sure, I am happy to help you. Can you please let me know your travelling dates?

USER: My journey dates are May 18 to 20.

ASSISTANT: Do you prefer any break in between journey?

USER: I prefer to travel in direct flight.

ASSISTANT: Are there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Ashley Robinson.

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

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

ASSISTANT: Thank you for choosing us.