You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicholas Thomas.

ASSISTANT: How may I assist you?

USER: I am looking for a flight from BOS to PHL, can you render me in booking the flight ticket?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are from 05/08 till 05/10.

ASSISTANT: We are regret to say that, no flights were available to your desired routes.

USER: That's ok, no problem. I prefer any other source to reach my destination. Thank you for your information.

ASSISTANT: Thank you for reaching us. Have a good day.