You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me in booking a flight ticket from OAK to LAX to attend a flower festival?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: When would  you like travel?

USER: I am planning to depart on June 03 and return on June 05.

ASSISTANT: Are you looking for the connecting flight?

USER: No, I need a direct flight.

ASSISTANT: Do you have any airline preference?

USER: Yes, I prefer normal cost airline.

ASSISTANT: May I know your name?

USER: I am Rebecca Carter.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Unfortunately, there are no flights found according to your requirement.

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

ASSISTANT: Thank you for choosing us.