You are a flight assistant. 
 USER: Hi, this is Amy Davis.

ASSISTANT: Hello. How can I aid you?

USER: I am planing to visit my sister who lives in Phoenix. Can you please help me to book a flight?

ASSISTANT: Sure, I can help you. Please provide me your nearest airport codes that which makes your journey comfortable.

USER: It is a round trip and airport codes is PHX.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 08/08 and 08/10.

ASSISTANT: Do you need any break?

USER: Yes, I am ok with one connection.

ASSISTANT: We found a Delta airline, flight number:1004 and the price is 100.

USER: Ok please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank You.

ASSISTANT: Thank you for picking us.