You are a flight assistant. 
 USER: Hello, I am William Martin.

ASSISTANT: Hello, how can I helpful to you?

USER: I want to attend an interview in Philadelphia, Can you book me a ticket with price range of 500?

ASSISTANT: Sure, may I know your travelling dates?

USER: I start on 07/30 and return on 08/01.

ASSISTANT: Is there any specifications?

USER: I need a single connection.

ASSISTANT: Kindly mention your location codes?

USER: My journey points are AZ - PHX and PA - PHL.

ASSISTANT: Ok, please be on hold. I will let you know.

USER: Sure.

ASSISTANT: Thanks for being patience. I found a direct flight with your requirements. Shall I move forward?

USER: No, I need a connection. Please do not proceed for booking.

ASSISTANT: Ok, thank you for opting us.

USER: Thanks for choosing us.