You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best help you?

USER: I am planning to go for Seattle winery tour.So, will you be my helping hand in booking a flight ticket to Seattle, SEA?

ASSISTANT: Sure, may I know your journey dates?

USER: I would like to start on 05/20. I intend to return on 05/22.

ASSISTANT: What is your source airport code?

USER: My boarding point is Boston, BOS.

ASSISTANT: Do you need any other specifications?

USER: Yes, my price limit is 200.

ASSISTANT: There is a flight found with UA airline of flight number 1003 and single connection. Shall I proceed for booking?

USER: Yes, you can.

ASSISTANT: To proceed for booking I need to know your good name please?

USER: Ok, I am Mary Miller.

ASSISTANT: Your ticket has been booked.

USER: Thank you for assisting me.

ASSISTANT: Thanks for choosing us, have a nice journey.