You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Martinez.

ASSISTANT: How may I assist you today?

USER: I am planning to visit Angel Island at Oakland, could you please help me with booking a flight ticket from MSP to OAK?

ASSISTANT: Please provide me your travel dates.

USER: I would like to take off on 09/17 and return on 09/19.

ASSISTANT: I could not find any flight with your details.

USER: That's ok, I will find an another alternate way to complete my trip.

ASSISTANT: It's my pleasure.