You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm Jennifer Clark.

ASSISTANT: Hello Clark.

USER: I am planning to travel from OAK to SFO to attend my sister's wedding anniversary, can you please help me with booking a flight ticket?

ASSISTANT: Sure, can you tell me when you are willing to travel?

USER: Sure, my departure date is on 08/23 and the return date is on 08/25. Please make sure that the connection limit is 0.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flight available with 0 connection.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for checking.