You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Patrick Lewis. To participate in soft adventure sport at Austin, can you help me to book a connecting flight?

ASSISTANT: Sure, when are you planning to travel?

USER: 01/29 and 01/31 are my travelling dates.

ASSISTANT: Could you please provide your codes of the airport?

USER: DCA is my origin and EWR is my destination.

ASSISTANT: We found a flight with couple of connections. Shall I proceed?

USER: No, I need a single connection. Thanks for your service.

ASSISTANT: Thank you.