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

ASSISTANT: Hello, how can I serve you today?

USER: I need to book a flight ticket to Oakland for shopping with my granny. Could you please make a plane reservation for me?

ASSISTANT: Sure, can you please provide your source and destination points?

USER: I would like to deviate from Boston MA-BOS to Oakland CA-OAK.

ASSISTANT: May I know your journey dates please?

USER: My depart is on 01/09 and arrival on 01/11.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight. I can afford upto 5000.

ASSISTANT: Please wait a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no flight found on your given details.

USER: Ok, no issues.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your service.