You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Ronald Turner, looking for a flight ticket to Boston. Can you assist me with searching a direct flight for me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please let me know your source and destination airport codes.

USER: Sure, my boarding point is ORD and I will land on BOS.

ASSISTANT: When you are willing to travel?

USER: My preferable dates are 02/06 and 02/08.

ASSISTANT: Kindly, mention your price limit.

USER: I have a price limit of 1000.

ASSISTANT: Thanks for sharing your details. Unfortunately, there was no direct flight available with your requirements.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you for approaching us.