You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I am Sharon Walker. Can you help me to book a flight ticket from SFO to PHL?

ASSISTANT: Sure, I am really gleeful to help you in booking the flight ticket.  Please share me your journey dates of your planned trip.

USER: Ok, my travel dates are 11/01 and 11/03 respectively.

ASSISTANT: Do you have a specification regarding flight ticket booking?

USER: Please go ahead if there is a direct flight then book it.

ASSISTANT: Sorry Walker, here I didn't find any flight in your way.

USER: That's fine, thank you for assisting me.

ASSISTANT: Thank you for approaching us.