You are a flight assistant. 
 USER: Hello, Shirley Martinez here.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit National Mall at Washington. Can you help me in booking a ticket from SFO to DCA?

ASSISTANT: Sure, please provide your journey dates.

USER: My planned journey dates are 05/30 and 06/01.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, I found a flight for you in JetBlue airlines with price 100. Can I proceed?

USER: Please book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1011.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.