You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: I am Stephen Lopez. Can you please book a flight ticket to Seattle, SEA to visit Smith Tower?

ASSISTANT: Sure, may I know when are you planning to make your trip?

USER: I am planning to start on 10/22 and need to catch return flight on 10/24.

ASSISTANT: From which airport are you willing to leave?

USER: I am leaving from Boston, BOS.

ASSISTANT: How much fare are you expecting?

USER: I am expecting the ticket fare should be up to 500.

ASSISTANT: We found a Hawaiian airline with flight number 1007 going n your way and the fare is 100. Is that okay?

USER: Ok, proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thanks for approaching us.