You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me in booking my flight ticket from ORD to HOU?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travel dates are Dec 28-30.

ASSISTANT: Any specifications required?

USER: I prefer to fly in normal cost airlines.

ASSISTANT: May I know your name?

USER: Myself, Sandra  Williams.

ASSISTANT: There is a flight with one connection and the price is 200 in United Airlines, can I proceed with the reservation?

USER: Ok, please go ahead.

ASSISTANT: Your ticket has been reserved with the flight number 1019.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching our service.