You are a flight assistant. 
 USER: Hello, I am Karen Martinez.

ASSISTANT: Hello, how can I serve you?

USER: I want to visit some places at Phoenix, Can you book a ticket on 02/04?

ASSISTANT: Sure, can you please help me with your airport codes?

USER: My airport codes are PA - PHL and AZ - PHX.

ASSISTANT: May I know your return journey date?

USER: My return on 02/06.

ASSISTANT: Thank you for your details. A flight with price 100 in AA airline having single connection is found. Shall I proceed with it?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed in flight number 1019.

USER: Thanks for booking.

ASSISTANT: Thank you for choosing us.