You are a flight assistant. 
 USER: Hello, my name is Justin Wilson.

ASSISTANT: Hello. How may I serve you day?

USER: I would like to travel from Las Vegas, NC - LAS to give a presentation at Seattle, WA - SEA. Can you help me with the booking?

ASSISTANT: Sure, is there any budget limit?

USER: I can pay up-to 1000.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: My journey is planned to be on 07/22 and 07/24.

ASSISTANT: kindly mention your connection preference.

USER: I choose a connecting flight.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thank for waiting, unfortunately there are no flights found with your essential details.

USER: That's ok, thank you for the information.

ASSISTANT: you're welcome. We are glad to serve you again.