You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Donald Collins. I am planning to meet my cousin at Washington, IAD. Can you please book a ticket on 11/20?

ASSISTANT: Sure, may I know your return date?

USER: I will return on 11/22.

ASSISTANT: Ok, please share your source point.

USER: Source code is Austin, AUS.

ASSISTANT: Ok, do you need any halt?

USER: Yes, I need a halt.

ASSISTANT: Thanks for your information, there is a flight found in 1028 AA airline with a fare of 300. Can I proceed for booking?

USER: Do not proceed.

ASSISTANT: Ok.

USER: I can afford only 200. Thank you.

ASSISTANT: Thank you for reaching us.