You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Jason Phillips. I want to visit Navajo Adventure at Wasington, can you please book me a ticket?

ASSISTANT: May I know your desired travel dates please?

USER: My journey dates are 09/14 to 09/16.

ASSISTANT: Please share your desired airport codes.

USER: I will start from MCO to IAD.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: No issue, thank you for checking.

ASSISTANT: Thank you for opting us. Have a nice day.