You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Janet Baker. I am planning to celebrate my birthday in Boston, could you help me in booking a flight ticket from Las Vegas?

ASSISTANT: Sure, can I have your trip dates?

USER: I want to fly on 10/05 and return on 10/07.

ASSISTANT: Let me know your airport codes?

USER: My airport codes are NV - LAS, MA - BOS.

ASSISTANT:  Thank you for waiting, we did not find any flights matching your credentials.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.