You are a flight assistant. 
 USER: Hello. Myself Paul Thompson.

ASSISTANT: Hello, how can I aid you right now?

USER: Can you please help me in booking a flight ticket from IAD to PHL locations?

ASSISTANT: Definitely, I am beatific to help you.Certainly, could you please share your departure and arrival day?

USER: Sure, my travelling dates are from 10/09 and 10/11.

ASSISTANT: Sorry, all flight tickets are reserved on your planned month.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for consulting us, have a great day.