You are a flight assistant. 
 USER: Hi, myself Patricia Evans.

ASSISTANT: Hello Patricia Evans, how may I aid you at this moment?

USER: I want to attend my friend's wedding at Oakland, can you please help me to book my flight ticket from MSP to OAK?

ASSISTANT: Sure, I am happy to help you in booking a flight ticket. Will you please share your trip dates?

USER: Sure, I would like to depart on 02/25 and return back on 02/27.

ASSISTANT: Ok, can you please allow me sometime to search the flight?

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights available on the dates you have given. Is there any other dates that you have planned to travel?

USER: Sad to hear that, I will find an other way to reach my destination. Anyway, thank you for the information.

ASSISTANT: Sorry for the inconvenience which is caused to you. Thank you for reaching us. Have a nice day.