You are a flight assistant. 
 USER: Hello, I am Karen Miller.

ASSISTANT: Hello, what kind of help are you looking from us?

USER: I need to fly from IAD to PHL. Can you please help me to book a single connection of flight?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your planned dates of travel?

USER: My travelling dates are from Sept 25 to Sept 27.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait a minute let me search a best flight for you.

USER: Sure.

ASSISTANT: We found an airline UA with fare 100 and having a single connection in between your journey. Shall I proceed with booking?

USER: Ok, please proceed to book.

ASSISTANT: Your ticket has been booked for flight 1002.

USER: Thank you for your booking.

ASSISTANT: Thank you for contacting us, have a safe flight.