You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I would like to return on 04/10 after finishing off my work at Oakland, CA - OAK. Can you help me book a flight ticket for my round trip on 04/08?

ASSISTANT: Sure, I am happy to help you. Can you please help me with your budget limit?

USER: The flight ticket should cost within the price of 200.

ASSISTANT: We found a flight with Hawaiian airline price 100 and single connection.

USER: Ok, proceed for booking.

ASSISTANT: Shall I proceed to book?

USER: Yes please.

ASSISTANT: Please help me with your name for booking.

USER: My name is Shirley Nelson.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.