You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, please let me know your name?

USER: Yes, I am Brandon Lee here.

ASSISTANT: Ok Lee, what can I assist you today?

USER: I am planning to visit a Twin Peaks in SFO from OAK. Can you find a ticket for me?

ASSISTANT: Of course, I can do that for you. What are your travel dates?

USER: Yes, I want to travel on these days 04/11 to 04/13. Make sure that the connection limit is 1.

ASSISTANT: Ok, please wait a while, I will search the flights.

USER: Ok, sure.

ASSISTANT: Sorry to inform you Lee, there are no flights running on the dates you have planned.

USER: Thank you for your information.

ASSISTANT: You are welcome. Have a nice day.