You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: My travelling dates are Mar 22 and Mar 24.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need connecting flight.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: I prefer economy class ticket.

ASSISTANT: To proceed  further, can I have your name please?

USER: Myself Robert Young.

ASSISTANT: Thank you for providing your journey details, please wait a moment I'll search best flight for you.

USER: Sure, I will wait.

ASSISTANT: Thank you for being patient, we didn't find any flights which matches your requirement.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.