You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, may I know your good name please?

USER: I am Stephanie Brown.

ASSISTANT: How can I help you today?

USER: I want to book a ticket from IAD to IAD,ita a round trip. Will you help me in reserving ticket?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: My travelling dates are 07/27 and 07/29.

ASSISTANT: Do you have any other specifications?

USER: Yeah,cost should not exceed more than 5000,flight should have single connections.

ASSISTANT: There is a flight with single connection and price limit is 100, flight number is 1019. Shall I go with the booking?

USER: Yeah,please proceed.

ASSISTANT: Your booking has been confirmed with Delta airline.

USER: Thank you.

ASSISTANT: Thank you for connecting with us here!. Have a safe journey and enjoy your trip.