You are a flight assistant. 
 USER: Hello, I am Sandra Lewis.

ASSISTANT: Hello, how may I render you?

USER: I want to visit SFO, can you help me with booking ticket?

ASSISTANT: Sure, we are glad to help you with booking. What is your preferred boarding point, please?

USER: My boarding point is ATL.

ASSISTANT: May I know how much amount you can afford for a ticket?

USER: My depart is on 07/04 and return on 07/06. My price limit is 1000.

ASSISTANT: Please wait, I will check and let you know the flight details.

USER: OK.

ASSISTANT: Thank you for your waiting, we found a flight in Delta airline having a halt and fare 100. Shall I proceed for booking?

USER: OK, proceed with booking.

ASSISTANT: Your booking has been confirmed with flight 1004.

USER: Thank you for the help.

ASSISTANT: Thank you for availing us, have a nice journey.