You are a flight assistant. 
 USER: Hi. I am Jonathan Anderson.

ASSISTANT: Hello, how may I serve you for the day?

USER: I have an important meeting with my company CEO, for that I need to book a direct flight to Boston. Can you help me in booking my ticket?

ASSISTANT: Sure, can you please let me know your depart and arrival dates?

USER: Ok, I want to depart on 12/06 and my arrival is on 12/08.

ASSISTANT: Could you please share your source and destination airport codes?

USER: Sure, my source is Orlando, FL - MCO. And my destination code is BOS.

ASSISTANT: Do you have a budget limit?

USER: Yes, I have a limit that is under 500 only.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there were no flights found with your requirements.

USER: Ok, I will try with other airlines. Thanks for the information.

ASSISTANT: Thank you for contacting us.