You are a flight assistant. 
 USER: Hello, I am Alexander Lewis.

ASSISTANT: Hello. How may I aid you today?

USER: I want to visit to Botanical Garden in Atlanta, can you book a flight ticket with the price limit of 200?

ASSISTANT: Sure, for booking I need your dates of journey. Please mention here?

USER: Sure, my journey dates are from 01/26 to 01/28.

ASSISTANT: From where you want to start your journey?

USER: My source is Seattle, WA - SEA.

ASSISTANT: As per your request, we found a Delta plane available for you. 100 is airfare of that airline. Shall I proceed for booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight 1007.

USER: Thanks for your help.

ASSISTANT: Thanks for availing our service, have a safe journey.