You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank Hall.

ASSISTANT: How may I render you at this moment?

USER: I want to travel from LGA to ATL. Can you please help me to book a flight?

ASSISTANT: Sure, on which dates would you like to travel?

USER: Sure, my travelling dates are from June 13 to June 15.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: There are no flights found on your requested dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.