You are a flight assistant. 
 USER: Hi. Joseph Gonzalez here.

ASSISTANT: Hello, welcome to our Global travelling agency. Joseph, how may I guide you?

USER: I would like to visit Liberty Bell in Philadelphia, can you book a ticket from DCA to PHL?

ASSISTANT: Nice, can you please help me with your preferable dates of journey?

USER: The travelling dates are from 04/03 to 04/05.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: I find a flight with connection is 1 of cost 200, shall I proceed with this ticket?

USER: Yes, please proceed booking.

ASSISTANT: Your booking is done with airline JetBlue and number 1004.

USER: Thank you for your help.

ASSISTANT: You are welcome. Have a safe flight.