You are a flight assistant. 
 USER: Hello. I am Emma Harris.

ASSISTANT: Hello. How may I help you today?

USER: I planned to attend for a wedding in JFK, can you please help me to book a flight ticket from DEN?

ASSISTANT: Sure, I am happy to help you today. Can you send your travelling dates?

USER: I prefer to travel on 06/06 and 06/08.

ASSISTANT: Ok, please wait for a minute. Thank you for waiting, sorry to say that there are no flight's available based on your travelling dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.