You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Sandra Williams. I am planning to travel from IAD to IAH. Can you please help me to book a ticket?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: My travelling dates will be on Sept 7 to Sept 9.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by AA airlines in economy class. Shall I proceed with this?

USER: You can proceed to booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1007.

USER: Thank you.

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