You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Betty Lopez. I would like to book a ticket from JFK to DCA, can you please help me out?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates of journey?

USER: I am travelling on these dates 07/19 and 07/21.

ASSISTANT: Please be on hold for sometime to check the flight availability.

USER: Sure.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

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

ASSISTANT: You are welcome, thank you for reaching out here.