You are a flight assistant. 
 USER: Hello, I am Edward Rodriguez.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a flight ticket for fun fair exhibition with my friend in Philadelphia PA-PHL. Could you please help me in booking a flight ticket?

ASSISTANT: Sure. Where would you like to start from?

USER: My source point is CO-DEN.

ASSISTANT: Can I know your travelling dates?

USER: I would like to depart on 02/06 and arrive on 02/08.

ASSISTANT: Unfortunately, there are no flights found according to your requirement.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for consulting us.