You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Mark Parker here.

ASSISTANT: How may I guide you?

USER: I am looking for a flight ticket with price below 200. Can you book it?

ASSISTANT: Mark Parker, I am willing to help you for this. When you are willing to travel?

USER: My travel dates for the journey are from Mar 01 to Mar 03.

ASSISTANT: Could you please share me your airport codes?

USER: Yes, my airport codes are from ORD to SFO.

ASSISTANT: Do you prefer any class?

USER: That does not matter. Any class will be fine.

ASSISTANT: Do you require any halt between your journey?

USER: Yes, I am looking for a single connecting flight.

ASSISTANT: How much you will afford for the ticket?

USER: I am looking for a flight ticket with price below 200.

ASSISTANT: As per your data, I found a flight with UA airlines and the ticket figure is 100. Would you like me to make the booking now?

USER: I am fine with the airlines and fare. You can book it.

ASSISTANT: Your ticket is reserved in economy class with the flight-1007.

USER: Thank you.

ASSISTANT: Thank you very much for utilising our agency.