You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to my mother from New York.

ASSISTANT: Ok, may I know her travelling dates?

USER: She is wiling to travel on 05/27 and return on 05/29.

ASSISTANT: Can you please share her journey airport codes?

USER: She is attending business meeting at Washington IAD. Source is EWR.

ASSISTANT: Ok, may I know your mother name?

USER: Shirley Lee.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Unfortunately, we did not find any flights on your respected dates.

USER: Thanks for informing.

ASSISTANT: Thank you for approaching us.