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 IAH to ORD?

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

USER: My travelling dates are Feb 29 and Mar 01.

ASSISTANT: Do you have any preferences about flight connections?

USER: I need direct flight to complete my trip.

ASSISTANT: Please mention your name.

USER: Myself Angela Barker.

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

USER: Thank you for checking.

ASSISTANT: Welcome, have a great day.