You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you today?

USER: My name is Catherine White. Please book a ticket from Oakland, CA-OAK to Washington, DC-IAD, for festival celebrations.

ASSISTANT: Sure, Catherine White. Can you please mention your preferable dates?

USER: Depart on 08/06 and return by 08/08.

ASSISTANT: Do you have any other requirements?

USER: Price limit 5000. Connections limit 1.

ASSISTANT: Thanks for your information, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, we found a Hawaiian airline with a price of 300.

USER: Please provide flight number.

ASSISTANT: Sure, the flight number is 1021 with a single connection.

USER: Please book a flight.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thanks for the help.