You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: Myself Timothy Johnson from San Francisco. Could you please help me in flight ticket booking process from SFO to LGA?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Thank you for your positive response, I want to take off on 02/22 and please confirm my return ticket also on 02/24.

ASSISTANT: Please wait a moment, I will check the availability of flights.

USER: Ok.

ASSISTANT: I found a flight for you in Delta airlines with price 200, can I book your ticket?

USER: Please confirm this flight ticket for me.

ASSISTANT: Ok, your booking is confirmed with flight number 1000.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.