You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Nicholas Hernandez.

ASSISTANT: Hello Nicholas.

USER: I'm planning to visit Washington to meet my family, can you please book a ticket from DCA?

ASSISTANT: Sure, may I know your preferable dates?

USER: The dates are from 02/22 to 02/24.

ASSISTANT: Please provide your destination airport code.

USER: My destination airport code is DCA.

ASSISTANT: Ok, based on your details I have found a flight for you.

USER: Ok, please book the ticket.

ASSISTANT: Flight number 1002 from Delta airlines with 1 connection with the fare of 100 is available for you. Your ticket is booked with that.

USER: Thank you for your response.

ASSISTANT: Thank you for using our services, have a safe journey.