You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I assist you?

USER: I am Helen Lewis. I want to visit Golden park gate at San Francisco, ca you please help me?

ASSISTANT: May I know the travelling dates?

USER: My travel dates are from 04/11 to 04/13. My airport codes are from OAK to SFO.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a connecting flight with price limit 500.

ASSISTANT: Please wait a minute, I will check and get back to you.

USER: Ok.

ASSISTANT: We have found a flight from AA airline with flight number 1014. Price 100 with one connection. Shall I do the reservation?

USER: You can go ahead with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you, Have a safe flight.