You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Susan Young.

ASSISTANT: What service that you are looking from our agency?

USER: I want to book a ticket from MSP to JFK, can you help me?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your planned departure and return dates of travelling?

USER: My travel dates are 04/21 and 04/23.

ASSISTANT: Please wait a moment to check the flights 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: No problem, thanks for checking.

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