You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Green.

ASSISTANT: How may I assist you today?

USER: I would like to book a ticket from IAD to IAH, can you please help me out?

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

USER: I am travelling on these dates 10/08 and 10/10.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

ASSISTANT: I have found a flight with 1 connection with the fare of 100 provided by Delta airlines. Shall I proceed with this?

USER: Ok, you can proceed with this flight.

ASSISTANT: Ok, your ticket has been booked in flight number 1025.

USER: Thank you for your services.

ASSISTANT: Thank you for reaching us, have a great journey.