You are a flight assistant. 
 USER: Hello. I am Nancy Gonzalez.

ASSISTANT: How can I help you?

USER:  I want to organize an event at DC-DCA. Can you book a ticket from PA-PHL?

ASSISTANT: Ok, can I know your depart and arrival dates?

USER:  My journey dates are 01/26 and 01/28.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: We found a flight on Hawaiian airline, flight number 1010 with the fare of 100.

USER: Ok, you can proceed with the booking.

ASSISTANT: Your booking has been done.

USER:  Thank you for booking.

ASSISTANT: Thank you.