You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, may I know your name please?

USER: My name is Andrew Hill.

ASSISTANT: Hill, how may I assist you today?

USER: My Friend invited me for Boston Odyssey (dinner cruise) on 05/29.

ASSISTANT: Ok, can you help me with your airport codes?

USER: Can you please help me in finding a flight from Oakland, OAK? My destination airport code Boston, BOS.

ASSISTANT: When you are going to return?

USER: I intend to return from Boston on 05/31.

ASSISTANT: Ok, wait for a moment please.

USER: Sure.

ASSISTANT: Sorry to sat this Hill, no flights as per your details.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Anything else to help you.

USER: No, Thank you.

ASSISTANT: Thank you for reaching us.