You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Micheal Moore.

ASSISTANT: How can I help you?

USER: I am planning to visit my sister's home. Can you please book a ticket from LGA to JFK?

ASSISTANT: Please share your travel dates?

USER: I would like to travel on 07/15 and return on 07/17.

ASSISTANT: There is no flight available on your desired travel dates.

USER: That's fine. Thank you for your help.

ASSISTANT: Thank you for reaching us.