You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a flight ticket from IAD to PHL?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are 09 to 11 of Feb.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference for you?

USER: I am ok with any class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Gregory Walker.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Delta, flight number: 1003 and price is 100 with one connection.

USER: Please proceed to booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.