You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you today from my end?

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

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My planned travel dates are Jan 29 to Jan 31.

ASSISTANT: May I know your name to proceed further?

USER: I am Dennis Jackson.

ASSISTANT: Do you have any limitation in connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Dennis Jackson, here is a connecting flight in UA airlines with airfare about 100. Can I proceed with it?

USER: Ok, please go ahead.

ASSISTANT: Your ticket has been booked with 1009 flight in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.