You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to travel from LAS to OAK, can you help me?

ASSISTANT: Sure, I will help you. When would you like to plan your journey?

USER: My trip dates are 05/29 and 05/31.

ASSISTANT: May I know your good name please?

USER: I am Kathleen Lopez.

ASSISTANT: Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: May I know your other specifications?

USER: I prefer business class.

ASSISTANT: Kathleen Lopez, no flights has been found on your planned travel dates.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.