You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Deborah Scott here.

ASSISTANT: How may I aid you today?

USER: I want to attend my son's convocation ceremony, so please book my ticket from IAD to PHL.

ASSISTANT: Scott, can you please mention your travelling dates?

USER: My itinerary dates are 11/27 and 11/29.

ASSISTANT: Please wait a moment, let me check in our database with the details.

USER: Sure.

ASSISTANT: There is a direct flight with the price 200, can I proceed with the booking?

USER: I need a connecting flight.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there are no flights running directly on your route.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching our service.