You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me in booking my flight ticket from ATL to ORD?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travelling dates are Dec 05 and Dec 07.

ASSISTANT: Do you have any specifications about class?

USER: I do not have any other preference.

ASSISTANT: Do you have any preferences about flight connections?

USER: I am comfortable with any flight.

ASSISTANT: Please mention your name.

USER: Myself Samantha Jackson.

ASSISTANT: There are no flights found under your preferable details.

USER: Ok, thanks for your information.

ASSISTANT: Welcome, have a great day.