You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Brandon Campbell. I am planning to travel from Phoenix to Philadelphia to attend seminar, can you help me in booking?

ASSISTANT: Sure, do you have any specifications?

USER: I want a flight with connection limit 0.

ASSISTANT: Can you provide your journey dates for booking?

USER: I am planning to depart on 08/26 and willing to return on 08/28.

ASSISTANT: May I know from which place you want to start your journey?

USER: I am travelling from my nearest airport AZ-PHX in Phoenix.

ASSISTANT: Can you share your landing airport code for searching a flight as per your requirements?

USER: Well, my landing airport code is PHL.

ASSISTANT: Give me a minute.

USER: Ok, I will be waiting.

ASSISTANT: Sorry, there is no flight found on your given dates.

USER: No issue, I will try with other alternative.

ASSISTANT: Thank you for choosing us.