You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to attend for an interview in New York, so please book a flight ticket from OAK to LGA.

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

USER: I want to fly on Jan 21, return on Jan 23.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Please share your name to proceed further.

USER: My name is Shirley Wright.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Not an issue, thank you.

ASSISTANT: Thank you for choosing us.