You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Taylor.

ASSISTANT: How can I serve you?

USER: I want to travel to SFO, can you help me in booking a flight ticket?

ASSISTANT: Donna Taylor, can you tell me your dates?

USER: Yes, I am planning from 11/14 to 11/16.

ASSISTANT: What is your origin code?

USER: My origin airport code is NY- LGA.

ASSISTANT: Flight 1015 is available for your requirements.

USER: Ok, it's fine for me. Please book this flight ticket.

ASSISTANT: Booking confirmed by the name of Donna Taylor. Thanks for reaching us.

USER: Thank you for assisting me.