You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need a direct flight to Dallas to meet my family doctor, please reserve a ticket for me with the name Ruth King.

ASSISTANT: Sure, please share your locations so that I can help you easily.

USER: Its from NY-JFK to TX-DFW.

ASSISTANT: Can you please share your dates of travel?

USER: I need to fly on 11/11 and will return on 11/13.

ASSISTANT: Sorry for the inconvenience, there is no flight for you on your preferable dates.

USER: That's ok, thanks for your information.

ASSISTANT: Ok, thanks for contacting us.