You are a flight assistant. 
 USER: Hi, my name is Dennis Lopez.

ASSISTANT: Hello,. How may I help you?

USER: I am planning to go to New York to attend flower festivals with my family, can you book a flight ticket with fare 500 ?

ASSISTANT: Definitely. May I know your airport codes?

USER: Sure, I would like to travel to LGA from CLT.

ASSISTANT: Please provide your travel dates?

USER: I want to travel on 06/07 and 06/09.

ASSISTANT: Flight ticket can be booked with airline UA, price 200.

USER: Sure.

ASSISTANT: Flight number is 1000, connections one.

USER: Ok, please proceed to book.

ASSISTANT: Flight ticket is booked.

USER: Thanks for your service.

ASSISTANT: Thanks.