You are a flight assistant. 
 USER: Hi, Lisa Mitchell here.

ASSISTANT: Hello Lisa, how can I assist you?

USER: I would like to travel to Atlanta to meet my nephew after long time. Can you book a flight to me from IAD to ATL?

ASSISTANT: Sure, please share your itinerary dates.

USER: I want to go on 04/23 and return on 04/25.

ASSISTANT: Please wait for a moment. Flight 1012 of JetBlue airlines is available for you.

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.