You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I'm Carolyn Gonzalez. I would like to visit Golden Gate Bridge at SFO, could you please help me with booking a flight ticket from EWR?

ASSISTANT: Please mention your trip dates.

USER: I would like to take off on 05/23 and return on 05/25.

ASSISTANT: Please give me a second.

USER: Sure.

ASSISTANT: I found a flight 1001 of Spirit airline for you, shall I reserved?

USER: Make sure that the price limit should not exceed 500.

ASSISTANT: The flight price is 100.

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked successfully.

USER: I really appreciate your help, thank you.

ASSISTANT: Thank you for contacting our service.

USER: You are welcome.