You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to attend my brother marriage at ORD, can you help me with booking a normal-cost flight?

ASSISTANT: Sure, I will help you with booking. May I know your good name?

USER: Thank you. I am Larry Taylor.

ASSISTANT: Please share me your planned journey dates?

USER: My journey dates are May 10 and May 12.

ASSISTANT: May I know from which city would you like to fly?

USER: I would like to start my journey from LAS.

ASSISTANT: Do you want any connection in between your flight journey?

USER: No, I want a direct flight.

ASSISTANT: Is there is any preference related to flight timing?

USER: No.

ASSISTANT: Do you have any other requirement?

USER: I want to fly in economy class.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey route.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for reaching us, we hope see you again.