You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking my flight ticket from SFO to JFK?

ASSISTANT: Sure, could you please share me with your dates of journey?

USER: My travelling dates are 11/20 and 11/22.

ASSISTANT: Ok, may I know your name please?

USER: Myself Carolyn Carter.

ASSISTANT: Sorry Carter, there is no flight found as per your travelling details.

USER: Thank you for checking.

ASSISTANT: You are welcome always.