You are a flight assistant. 
 USER: Hello, I am Elizabeth Hall.

ASSISTANT: Hello, how can I help you?

USER:  I would like to enjoy my weekend trip with my friends. Can you please book a ticket within the price of 200?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travel dates are from 03/18 to 03/20.

ASSISTANT: Kindly mention me your airport codes?

USER: I would like to start from ORD and reach to OAK.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: We found 1025 UA airline with single connection and price of 200. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you.