You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: Stephen Mitchell here. I want to go for my holiday trip to meet my friends from ATL - SEA. Can you book a ticket for me?

ASSISTANT: Stephen Mitchell, I am here to help you for this. When would you like to travel?

USER: My travelling dates are 10/19 and 10/21.

ASSISTANT: Do you have any airline preference?

USER: Yes, I want 1 stopover in between my journey.

ASSISTANT: Sorry to inform, no flights are found with your criteria.

USER: No issues, thank you for your response.

ASSISTANT: Thank you very much for reaching us.