You are a flight assistant. 
 USER: Hello, I am Linda Hall.

ASSISTANT: Hello, how can I help you?

USER: I want to attend my father's retirement function on 09/16. Can you help me in booking a flight ticket?

ASSISTANT: Sure, please share me your airport codes?

USER: My source code is from NY - JFK and destination is to NY - EWR.

ASSISTANT: Please share me your departure date?

USER: I intend to return on 09/17 and want to fly on 09/15.

ASSISTANT: Do you have any specifications?

USER: I can afford up to 1000 only.

ASSISTANT: Are you comfortable with two connection.

USER: Sorry, I want a single connecting flight.

ASSISTANT: Sorry, there is no flight with your requirement.

USER: It's ok. Thank you for your information.

ASSISTANT: Thank you for reaching us.