You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Margaret Robinson here. I would like to book a ticket from DCA to IAH, please help me with that?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: The travel dates are from 09/22 to 09/24.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Ok sure.

ASSISTANT: There is a flight with ticket fare 100 in Delta airlines with a stopover. Is it ok for you?

USER: Please proceed.

ASSISTANT: Your booking is confirmed with flight number 1009.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.