You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I abet you?

USER: I am Nicholas Collins. I am planning to my friends after a long time at Los Angeles, LAX.

ASSISTANT: Sure, I am mirthful to help you.

USER: Can you please book a ticket from Seattle, SEA?

ASSISTANT: May I know how much you can afford for this journey?

USER: Price should be under 200.

ASSISTANT: When you are planning to travel?

USER: Journey starts from 02/20 to 02/22.

ASSISTANT: Thanks for the details. Please, wait for a moment.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a flight available with UA airline, flight number 1010 with fare 100.

USER: You can proceed.

ASSISTANT: Your ticket has been reserved with flight having a lay by.

USER: Thank you.

ASSISTANT: Thank you for availing us.