You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am James King.

ASSISTANT: How may I aid you today?

USER: I am planning to visit Houston to attend automobile workshop, can you please book me a ticket from IAD to HOU?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My preferable journey dates are from 04/21 to 04/23.

ASSISTANT: Please wait for a minute, let me check the flight availability.

USER: Sure, take your own time.

ASSISTANT: I found a ticket for you with price of 200, flight number is 1028 and connection is 1.Shall I proceed the booking?

USER: That's ok for me. Please book my ticket with this airlines.

ASSISTANT: I confirmed your ticket successfully with Delta airline.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for reaching us.