You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Carter.

ASSISTANT: How may I assist you today?

USER: I am planning to book a ticket to meet my family at MSP. Can you please help me out to book a ticket from OAK?

ASSISTANT: Sure, I can help you in that flight ticket booking. Can you please help me in providing your travelling dates?

USER: I would like to travel on 03/19 and return back on 03/21.

ASSISTANT: Please wait for a minute, let me check.

USER: Sure, I will wait for your reply.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your travel dates.

USER: That's fine, thank you for your service.

ASSISTANT: My pleasure, have a great day ahead.