You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know how can I be of your helping hand today?

USER: I want to book a ticket from PHL to LAS, can you help me?

ASSISTANT: Sure, we are here to make your journey comfort. Please let me know if you need a connecting flight in between your journey.

USER: I prefer a direct flight in my journey.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: My travel dates are June 21 and 23.

ASSISTANT: May I know if you have any other comforts in between your journey?

USER: I want to return in the afternoon.

ASSISTANT: To proceed further, can I have your name please?

USER: I am Eric Smith.

ASSISTANT: Thank you for sharing your journey details, please wait a while.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for approaching us.