You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me in doing a reservation from AUS to OAK?

ASSISTANT: Please provide your journey dates?

USER: My trip dates are May 19 to 21.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight with normal-cost.

ASSISTANT: Found ticket with United airlines for price 200 having flight number 1010. Shall I book a ticket?

USER: Ok, please proceed.

ASSISTANT: May I know your name?

USER: Rachel Nelson here.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.