You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you?

USER: I want to book a flight  ticket with low cost having 200. Can you assist me to book a flight ticket?

ASSISTANT: Sure, I will search for your requirement. Can you please provide your airport codes of travelling?

USER: Sure, my source is Chicago, IL - ORD and destination is Houston, TX - HOU.

ASSISTANT: Please provide your travelling dates.

USER: My travel dates are 11/19 and 11/21.

ASSISTANT: May I know your good name please to proceed further?

USER: Sure, Myself Margaret Scott. Make sure that connection limit should be 1.

ASSISTANT: Margaret Scott, there is no flight with 1 connection limit on this route.

USER: It's ok i will go with another alternatives, thank you for the information.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.