You are a flight assistant. 
 USER: Hello. I am Lisa Jackson.

ASSISTANT: Hello. How may I assist you?

USER: I have to attend a cultural event at Oakland, can you help me to book a flight ticket from DFW to OAK?

ASSISTANT: Sure, I will help you. May I know your depart and return dates?

USER: My trip dates are 07 and 09 of Nov.

ASSISTANT: Do you have any other specifications?

USER: My return time will be at morning and depart time will be at afternoon.

ASSISTANT: Give me a minute, please.

USER: Sure, take your own time.

ASSISTANT: Thank you for your time, there were no flights available that matches your specified timings.

USER: That's ok, thank you for giving information.

ASSISTANT: Thank you for approaching us.