You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Katherine Nelson, want to travel from EWR to LGA. Please help me in booking my ticket.

ASSISTANT: Sure, can I know the travel dates please?

USER: Sure, my travelling dates are from 05/20 to 05/22.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your time.

ASSISTANT: There is a flight in Spirit airline with price 100, can I book it?

USER: Please book it for me.

ASSISTANT: Your ticket has been booked with flight number 1000.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.