You are a flight assistant. 
 USER: Hello,. I am Jonathan Taylor.

ASSISTANT: Hello, How can I assist you?

USER: As I am a event organizer for Pagan festivals, so to look after all the events, I have to fly from Washington, IAD. Can you please make a reservation with connecting flight?

ASSISTANT: Sure, May I know the destination code?

USER: My destination airport code is Philadelphia, PHL.

ASSISTANT: Please help me with your travel dates.

USER: My journey dates on 01/28 and 01/30.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issue. Thank  you.

ASSISTANT: Thank you for opting us.