You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit Redwood regional park which is located in Oakland, OAK. Can you help me with the booking process?

ASSISTANT: Sure, I am ready to help you. May I know on what dates would you like to travel?

USER: I want to travel in the month of Mar 22 and 24.

ASSISTANT: Can you please share your source location?

USER: My source is from Las Vegas, LAS.

ASSISTANT: May I know your name?

USER: William Davis here.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer direct flight.

ASSISTANT: Is there any preferences?

USER: No.

ASSISTANT: Sorry, there are no flights found on your travel dates.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.