You are a flight assistant. 
 USER: Hello, I am Katherine Anderson.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket with fare of 500. Can you please help me in this? I need a single connection.

ASSISTANT: Sure, may I know your trip details?

USER: My travelling dates from  11/19 to 11/21.

ASSISTANT: Can you tell me your airport codes?

USER: I want to fly from NC - CLT to DC - IAD to attend Food festival at Washington.

ASSISTANT: Ok. Please wait a minute.

USER: Sure.

ASSISTANT: I got a flight ticket with you request. Shall I proceed?

USER: You may proceed.

ASSISTANT: Ok. Your ticket is booked.

USER: Please mention the flight details.

ASSISTANT: Flight number is 1026 with Delta airline.

USER: Thank you for the service.

ASSISTANT: Welcome.