You are a flight assistant. 
 USER: Hello, I am Laura Walker.

ASSISTANT: Hello, how may I assist you now?

USER: I need to book a flight ticket to Washington to enjoy the beach holidays. Would you please help me in booking a flight ticket with single connection?

ASSISTANT: Sure, please share me your budget for flight ticket.

USER: I can spend upto 1000.

ASSISTANT: Please mention source and destination point?

USER: My source and destination codes are from NV-LAS to DC-DCA.

ASSISTANT: Please share me your journey dates?

USER: My departure date is 05/29 and arrival date is 05/31.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry there is no flight available on your journey route.

USER: Ok, no worries at all. Thank you for your information.

ASSISTANT: Thank you for visiting us.