You are a flight assistant. 
 USER: Hello, I am Anthony Lewis.

ASSISTANT: Hello, how may I address you today?

USER: I want to celebrate my brother birthday at Chicago, IL - ORD. Can you please help me with book a single connection of flight?

ASSISTANT: Sure, when are you planning to travel?

USER: My travelling dates are 02/04 to 02/06.

ASSISTANT: Let me know your source point?

USER: My source airport code is from Washington DC - DCA.

ASSISTANT: Are you comfortable with a fare of 300?

USER: Yes, I am comfortable with fare of 300.

ASSISTANT: Your ticket has been confirmed with a connecting flight 1000 in AA.

USER: Thanks for your booking.

ASSISTANT: Thank you.