You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book a direct flight to New York?

ASSISTANT: Sure, I am always here to help you. Can you please provide your name?

USER: I am Brandon Miller.

ASSISTANT: Let me know your travel dates in order to book a ticket.

USER: Sure, 17th Aug is my start date and 19th Aug is return date.

ASSISTANT: Please, share your source and destination airport codes.

USER: Airport codes are New York-LGA and New York-EWR.

ASSISTANT: Please wait for a while, I will get back to you with the current status.

USER: Sure.

ASSISTANT: Thanks for waiting, but no flights are found in search on respective dates of your travel.

USER: Ok, thank you for sharing the information.

ASSISTANT: Thank you for reaching us, have a good day.