You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How shall I help you?

USER: I am Samantha Campbell and I need attend my grandson's birthday in Dallas & Fort Worth, TX - DFW. Can you help me with that?

ASSISTANT: Surely,may I know your travelling details?

USER: I would start from New York, NY - LGA on 09/22 and end on 09/24.

ASSISTANT: OK,give me a minute.

USER: Ok.

ASSISTANT: Thank you for being waiting,but there is no ticket available as per your requirement.

USER: Ok, thank you.

ASSISTANT: OK,thank you for choosing us. Have a nice day.