You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What service that you are expecting from our agency?

USER: I am Jennifer Collins, can you help me to book a flight from DCA to IAH?

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

USER: My travelling dates are 10/11 and 10/13.

ASSISTANT: Please wait a moment to check the flights in 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 Delta airlines. Shall I proceed with this?

USER: Proceed with booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1023.

USER: Thank you.

ASSISTANT: Thank you for reaching to our services, have a great journey.