You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Stephanie Carter. Would you mind helping me in booking my reservation from 09/09 to 09/11?

ASSISTANT: Sure, I will help you. Kindly, share your airport codes?

USER: Ok, I want to fly from DCA and land in HOU.

ASSISTANT: Ok, please wait a minute.

USER: Ok. I need nonstop flight, please check accordingly.

ASSISTANT: In Southwest airline, 1025 flight is available with 1 connection and ticket cost is 100. Do you want to proceed this?

USER: I always prefer to travel in a flight having 0 connections, can you check once again?

ASSISTANT: Sure, please give me a minute.

USER: Ok, I will wait for your response.

ASSISTANT:  According to your provided details, there are no direct flight available on this route due to heavy bookings.

USER: That's ok, I will any choose other alternative way to reach my destination. Thank you for the information.

ASSISTANT: Most welcome.