You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Sandra Allen. I want to book a flight ticket from ATL to SFO. Could you help me in booking?

ASSISTANT: Sure, I am here to help you in booking the ticket. May I know your travel dates?

USER: My travelling dates are from May 27-29.

ASSISTANT: Ok, please tell me your airlines preference.

USER: I am comfortable with any airline.

ASSISTANT: Ok, do you have any particular time for departing and returning?

USER: No.

ASSISTANT: Ok, there is a flight-1018 which is having a single halt in between your journey and the ticket fare is 100. Can I proceed with the ticket confirmation?

USER: Yes, please proceed.

ASSISTANT: Ok, I have reserved your ticket with the above mentioned flight and the airline name is Delta. Have a safe flight.

USER: Thank you for helping me.

ASSISTANT: You are welcome. Thank you for choosing our agency.