You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Melissa Walker. Can you help me in booking the ticket from OAK to AUS?

ASSISTANT: Sure, may I know your trip dates please?

USER: My planning dates are from 02/19 to 02/21.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: I found a flight for you in JetBlue airlines with price 200. Shall I book your ticket?

USER: That's great, please proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1002.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.