You are a flight assistant. 
 USER: Hello. I am Katherine Wright.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit the cathedral of Christ the light in Oakland, OAK. Can you help me to book a connecting flight?

ASSISTANT: Sure, may I know your origin point?

USER: My origin is from New York, EWR.

ASSISTANT: Do you have any class preference?

USER: I am ok with any class.

ASSISTANT: Can you provide your travelling dates?

USER: My travel dates are Jan 11 and 13.

ASSISTANT: Do you have any other specifications?

USER: I want to depart in the morning time.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: Sorry, currently there are no flights.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.