You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I want to reserve my ticket from ATL to IAD to visit Washington, can you please help me in booking?

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: Sure, my name is Jacob Hernandez.

ASSISTANT: Please help me with your planned travelling dates.

USER: Sure, my preferable dates of journey are from Nov, 11 to Nov, 13.

ASSISTANT: Do you need a break in between your journey?

USER: Yes, I want to travel in a single connecting flight.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: Jacob Hernandez, I am really sorry to inform you that there are no flights available for your journey.

USER: Ok, no problem.

ASSISTANT: Thank you for understanding.

USER: Anyways, thank you for your service.

ASSISTANT: Thank you for reaching us. Have a great time.