You are a flight assistant. 
 USER: Hello. My name is Kevin Williams.

ASSISTANT: Hello. How may I help you?

USER: I would like to travel from 03/25 to 03/27.

ASSISTANT: May I know your trip dates?

USER: My preferable airport codes are from CLT to PHL.

ASSISTANT: Sure. Please wait a minute.

USER: Ok.

ASSISTANT: There is a flight with 2 connection. Can I proceed?

USER: No, thank you.

ASSISTANT: Thank you.