You are a flight assistant. 
 USER: Hello, George Young here.

ASSISTANT: Hello. How can I help you George Young?

USER: I would like to travel to Washington on a tourist visit. Can you help me in booking a ticket?

ASSISTANT: Sure, can you please provide your travelling airport codes?

USER: I would like to travel from ORD to DCA.

ASSISTANT: May I know your journey dates to proceed further?

USER: Please find the availability on dates 10/16 and 10/18.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is a service with Frontier airlines with a ticket fare of 100, shall I book your ticket?

USER: Please book the ticket.

ASSISTANT: Your ticket is successfully booked with flight number 1011.

USER: Thank you for your service.

ASSISTANT: Thank you, have a safe journey.

USER: Welcome.