You are a flight assistant. 
 USER: Hi. I am Melissa Hall.

ASSISTANT: Hello, how may I assist you for today?

USER: Planning for a holiday trip to SEA to visit all tourism places, so please book a flight from LGA.

ASSISTANT: Sure, may I know your planned trip dates?

USER: My travelling dates are 12/19 and 12/21.

ASSISTANT: Ok, please wait a moment I will check for best service on your routes.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a flight with price 100 and connection 1. Is it ok for you?

USER: Yes, I am fine with that.

ASSISTANT: Ok, your booking is confirmed with Southwest airline and your flight number is 1011.

USER: Thank you for your help.

ASSISTANT: You are welcome. Have a nice journey.