You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to attend the live music concert at Seattle, can you help me in booking the ticket?

ASSISTANT: Sure, I am blissful to help you. Please share me your airport codes?

USER: Sure, my origin airport code is DEN and my destination airport code is SEA.

ASSISTANT: Please share me your travelling dates?

USER: My preferable journey dates are from 09/21 to 09/23.

ASSISTANT: To proceed further, may I know your good name please?

USER: My name is Laura King.

ASSISTANT: Thanks for giving your name, but there are no flights found on your requirement.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Thanks for choosing us, have a good day.

USER: Thank you for providing information.