You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I render you?

USER: Would you help me in making a reservation to Detroit, IAD with the name of Michael Walker on 12/08?

ASSISTANT: Sure. May I know your return date?

USER: Return date is on 12/10.

ASSISTANT: Can I know your source code?

USER: Source code: Washington, IAD.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight with price limit of 5000.

ASSISTANT: There is a flight 1013 in AA airline and price 200 with a connection. Shall I proceed?

USER: Please confirm it.

ASSISTANT: Reservation of your ticket is done.

USER: Thank you.

ASSISTANT: Thank you.