You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Linda Hernandez.

ASSISTANT: How may I help you?

USER: I would like to travel from ATL to IAD, could you help me out?

ASSISTANT: Sure, please tell me your travel date.

USER: My preferable dates are from 03/05 to 03/07.

ASSISTANT: Sorry, there are no flights available for the given schedule.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your time.