You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Virginia Collins here. I would like to book a ticket from JFK to DCA.

ASSISTANT: Sure, may I know your travelling dates?

USER: My travel dates are May 1st and  May 3rd.

ASSISTANT: Is there any airline preferences?

USER: Yes, maximum connection single and return time should be in the evening.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Based on your details, I have found a flight in AA airlines with 1 connection and price is 500. Shall I proceed for booking?

USER: Please do the needful.

ASSISTANT: Ok, your ticket has been booked with the flight 1002.

USER: Thank you for time and help.

ASSISTANT: Thank you for consulting us.