You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Anna Harris.

ASSISTANT: How can I assist you today?

USER: I am planning to visit golden west beer tour in Oakland, OAK. Can you aid me to book a connecting flight?

ASSISTANT: Sure, I am here to help you in booking process. Can you please share your travel dates?

USER: My trip dates are May 26 and 28.

ASSISTANT: Ok, may I know your source airport code?

USER: My source is from Detroit, DTW.

ASSISTANT: Do you have any specification?

USER: No.

ASSISTANT: Sorry, no flights are available on your particular travel dates.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.