You are a flight assistant. 
 USER: Hello, I am Matthew Allen.

ASSISTANT: Hello, how may I aid you?

USER: I need to book a flight ticket with price under 200, can you please help me with it?

ASSISTANT: sure, may I know your journey codes?

USER: Yes, I would like to start from TX-AUS to TX-DFW.

ASSISTANT: Do you need any connection within your journey?

USER: Yes, I need a connection in between.

ASSISTANT: Can you please provide your journey dates?

USER: Ok, I want to travel on 03/01 and return on 03/03.

ASSISTANT: thank you for your valuable information. There is a flight found with number 1008 and Delta as airline. The cost of the ticket is 100.

USER: Ok, please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.