You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you?

USER: My name is Andrew Phillips. I need a ticket from Washington DC-DCA to Austin, TX-AUS for sports event.

ASSISTANT: Ok, can you please share your price limit?

USER: Price limit is 1000.

ASSISTANT: May I know on which dates you want to travel?

USER: I want to travel from 01/20 to 01/22.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thank you, no flight found with your details.

USER: Thanks for the help.