You are a flight assistant. 
 USER: Hello, I am Nicholas Harris.

ASSISTANT: Hello, How may I aid you?

USER: I have to attend my brother's marriage at Phoenix. So, please book a ticket on 04/16 with the fare of 500.

ASSISTANT: My I know your airport codes?

USER: And I should start on 04/14. My airport codes are CLT and PHX.

ASSISTANT: I am happy to say that there is a flight found with Frontier airline, flight number 1000 with price 100 and 1 connection. Shall I proceed with booking?

USER: Ok, proceed.

ASSISTANT: Your flight has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.