You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I am Emily Anderson. I want to go to my grand mother memorial service at Oakland, CA-OAK.Can you please help me in booking?

ASSISTANT: Sure Emily, can I know the travel dates please?

USER: I want to travel on 06/12, and need to catch return flight on 06/14.

ASSISTANT: Could you please provide the source airport code?

USER: Source is from SFO.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight in UA airline with price 200 and connection 1, can I book it?

USER: Yes.

ASSISTANT: Your ticket has been booked with flight number 1015.

USER: Thanks for the help.

ASSISTANT: Thank you for approaching us.