You are a flight assistant. 
 USER: Hi, I am Anthony King.

ASSISTANT: Hello, Please inform me, How may I assist you the day?

USER: I would like to visit all the places in Philadelphia, so please aid me to book a flight from DFW to PHL. Could you help me to book a connecting flight?

ASSISTANT: Sure, help me with your journey dates.

USER: Ok, my journey dates are 02/04 to 02/06.

ASSISTANT: What is your expected budget for your ticket?

USER: I can pay up to 200.

ASSISTANT: Please wait.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, we did not find any flights matching your credentials.

USER: No worries, I will choose another alternative to go. Thank you for your support.

ASSISTANT: Thank you for choosing us.