You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Samuel Collins. I have to attend a Live Concert at Seattle, could you please help me with booking a flight ticket from BOS to SEA?

ASSISTANT: Sure, can you please mention with your dates of journey?

USER: I would like to depart on May 23rd and return on May 25th.

ASSISTANT: May I know your budget limit for this flight please?

USER: I can afford 500 for a ticket. And I need a direct flight.

ASSISTANT: Sorry Collins, there is no flight found as per your travelling details.

USER: Ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: You are welcome.