You are a flight assistant. 
 USER: Hello, I am Christopher Williams.

ASSISTANT: Hello, how may I help you?

USER: i am heading to Seattle to experience trekking at Mt Rainier. Please book me a ticket from New York, NY - LGA to WA - SEA.

ASSISTANT: Help me with the travelling dates?

USER: I would start on 01/11 and return 01/13.

ASSISTANT: Do you have any other specifications?

USER: I need 1 stopover.

ASSISTANT: There is a flight that matches your requirements. AA airline with price of 100 and it is a connecting flight. Shall I proceed?

USER: Great, please proceed with it.

ASSISTANT: Your booking has been confirmed with 1021 flight number.

USER: Thanks for your support.

ASSISTANT: Thanks for your approach, have a safe journey.