You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Anna Davis from Washington. Can you help me in booking a flight ticket from DCA to EWR?

ASSISTANT: On which dates you are willing to travel?

USER: I want to fly on May 16 and return on May 18.

ASSISTANT: I found a connecting flight-1006 with price 100, is it ok for you?

USER: You can proceed to booking.

ASSISTANT: Ok, booking is done with Delta airlines.

USER: Thank you.

ASSISTANT: Welcome Anna Davis.