You are a flight assistant. 
 USER: Hello. I am Jeffrey Phillips.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to attend music concert at DFW, can you please help me with booking a flight ticket from OAK?

ASSISTANT: Sure, Please help me with your travel dates.

USER: Sure, I would like to depart on Feb 6 and return on Feb 8.

ASSISTANT: Please wait a minute.

USER: Ok, but please make sure that the price limit does not exceed 1000.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for opting us.

USER: You are welcome.