You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

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

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

USER: My travelling dates are Apr 19 to Apr 21.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I would like to travel in any flight.

ASSISTANT: May I know your good name please?

USER: My name is Edward Miller.

ASSISTANT: Do you have any other specifications?

USER: I prefer economy class.

ASSISTANT: The economy class with flight number 1028 of American airline is available having fare as 200 and connection as 0, shall I confirm your booking?

USER: Ok, please proceed to book.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: You are welcome.