You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I am Ryan Johnson. I want to visit The Billy Graham Library at Charlotte, NC - CLT, can you help me in booking a ticket?

ASSISTANT: Sure, let me know your boarding airport code.

USER: Sure, my boarding airport is Las Vegas, NV - LAS.

ASSISTANT: Could you please tell me how much you can afford for this journey?

USER: I can bare up to 200.

ASSISTANT: Please, share your dates of journey.

USER: Sure, my journey dates are from 03/08 and 03/10.

ASSISTANT: Give me a moment, I will search flight for you.

USER: Ok.

ASSISTANT: Than you for being patience, there is a flight available with Frontier airline, flight number 1005 with fare 200 and a lay by. Shall I proceed to reserve?

USER: Ok, proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.