You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Karen Lee. I would like to book a ticket from JFK to SEA, can you please help me out?

ASSISTANT: I am here to help you about that. Can you please provide your planned dates of journey?

USER: I am travelling on these dates 06/22 and 06/24.

ASSISTANT: Sorry Lee, there are no a flights on your planned dates of journey.

USER: Ok no problem, thank you for your services.

ASSISTANT: Most welcome, thank you for reaching out here.