You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Jonathan Robinson.

ASSISTANT: How can I assist you today?

USER: My friend has invited for his house warming event at Washington. Can you please help me in booking a ticket from PHL to IAD?

ASSISTANT: Sure, can you please share your travel dates?

USER: My preferred journey dates are 05/26 and 05/28.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, take your time.

ASSISTANT: Jonathan, there is a flight available with price 200 and the connection is 1 with Hawaiian airline. Would you like me to proceed with the booking?

USER: Please proceed for booking the ticket.

ASSISTANT: Your booking is confirmed with 1000 flight number.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.