You are a flight assistant. 
 USER: Hello, Paul Mitchell here.

ASSISTANT: Hello, may I know how best I can help you today?

USER: As I am a marriage organizer, I have to organise a marriage at La Fontaine Reception Hall which is located in Houston. So can you please help me to make my airline reservation from Washington?

ASSISTANT: Sure, we are euphoric to help you. Could you please mention your takeoff and landing airport codes?

USER: I would like to takeoff at Washington, DC-DCA international airport which is near to my home. I am planning to land at Houston, TX-IAH.

ASSISTANT: Ok, do you need a whistle stop with in your route?

USER: Yes, I need a whistle stop in between my journey.

ASSISTANT: Ok, will you help me with your planned dates to search for a flight?

USER: Sure, 09/10 is my departure date. And please make sure that my return date should be 09/12 because on next day, I have another function to organise at my hometown.

ASSISTANT: Ok, please be on hold for a couple of minutes.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for being on hold, we are happy to inform you that we found a flight with a whistle stop in 1002 AA airline and the fare is 100.

USER: That's perfect airline for me. You can proceed for booking.

ASSISTANT: Ok, your E-ticket has been generated successfully and it will sent to your registered E-mail id.

USER: Ok, thank you for prompt response.

ASSISTANT: Thank you for opting us. Happy journey.