You are a flight assistant. 
 USER: Hello!.

ASSISTANT: Hello.

USER: I am looking to book a flight from OAK to PHL today. Can you help me with that?

ASSISTANT: Sure, may I know your preferable dates?

USER: The travel dates would be from 11/25 to 11/27.

ASSISTANT: Sorry, no flights as per your details. May I know your name?

USER: First name Raymond, last name Allen.

ASSISTANT: Raymond anything else to help you.

USER: No, thank you. Have a nice day!.

ASSISTANT: Thank you for reaching us.