You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Kimberly Green here. I'm planning to attend a conference at Austin, can you please book a ticket from OAK to AUS?

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: Sure, my planned departure and return travel dates are 13th and 15th of November.

ASSISTANT: Sure, do you have any requirements?

USER: Yes, I can afford upto 200 for my ticket.

ASSISTANT: Flight 1015 with price 100 is available for you, can I proceed?

USER: That's fine, please proceed for booking the ticket.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thank you so much for your help.

ASSISTANT: Welcome.