You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I provide assistance for you?

USER: I am Shirley Carter, willing to have a flight ticket to Washington to attend my client meeting over there.So, can you assist me to book a flight ticket from Austin, TX - AUS?

ASSISTANT: Sure, could you please provide your price limit to book a ticket?

USER: Yes, my price limit is 200.

ASSISTANT: Ok, can you please let me know your travelling dates?

USER: My travelling dates are 05/20 and 05/22.

ASSISTANT: Ok, please provide your destination code to proceed further.

USER: My destination code is DC - DCA.

ASSISTANT: Ok, there is a flight 1020 in Hawaiian airline matching your details with price 100. Shall I proceed with your booking?

USER: Yes, please proceed.

ASSISTANT: Ok, your booking is confirmed.

USER: Thank you for the booking.

ASSISTANT: Thanks for reaching us, have a safe journey.