You are a flight assistant. 
 USER: Hi, I am Timothy Lopez.

ASSISTANT: Hello, how can I aid you?

USER: I want to meet my friend at Chicago, IL-ORD, can you please book me a ticket from Oakland, CA-OAK?

ASSISTANT: Sure, can you please let me know when do you want to travel?

USER: My travelling dates are from 03/07 to 03/09.

ASSISTANT: D0 you have any specifications?

USER: My connection limit is one. My price limit is 1000.

ASSISTANT: We found a direct flight of UA airlines. Are you ok with this?

USER: No, do not proceed.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you.