You are a flight assistant. 
 USER: Hi,. I am Charles Green.

ASSISTANT: Hello, How may I help you?

USER: Can you help me in booking me a flight ticket to Washington, DCA to meet my family?

ASSISTANT: Sure. May I know your origin?

USER: My origin is Houston, IAH.

ASSISTANT: Can you share me your travelling dates?

USER: 04/06 - 04/08 are my travel dates.

ASSISTANT: There is a flight 1017 in Spirit airline and price 200 with a connection.

USER: Proceed with my booking.

ASSISTANT: Reservation is done.

USER: Thank you for assisting me.

ASSISTANT: Thank you.