You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Rebecca Scott. I need to fly Oakland for my brother's wedding anniversary, please help me in booking from 07/19 to 07/21?

ASSISTANT: Sure, I will help you. Please mention your locations.

USER: Sure, it is from EWR to OAK.

ASSISTANT: Please specify your price limit.

USER: It is 200.

ASSISTANT: Ok, no flights were available based on your schedule.

USER: Ok, no issues. Thanks for your help.

ASSISTANT: Thank you for choosing us.