You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Mary Garcia here. Can you book my ticket from HOU to ORD?

ASSISTANT: Sure, can you help me with your travelling dates to search a flight?

USER: My travelling dates are from 10/08 to 10/10.

ASSISTANT: Do you have any requirements?

USER: My budget limit is 200.

ASSISTANT: There is a flight-1017 of Spirit airlines, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your booing is done.

USER: Thank you for your help.

ASSISTANT: Welcome.