You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you now?

USER: I am Carol Evans. I want to travel from my place to Seattle for my friend's get together. Can you please help me in ticket booking?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your source and destination airport codes?

USER: Of course, my source airport code is IAH and my destination airport code is SEA.

ASSISTANT: Please share me your planned journey dates?

USER: My trip dates are from 05/15 to 05/17.

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

USER: I would be preferred only single connection.

ASSISTANT: Please mention your budget for flight ticket?

USER: I have less budget limit that is 200 only.

ASSISTANT: Thank you for the details, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thank you waiting, sorry there is no flight available on your given journey data.

USER: It's ok, thank you for help.

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