You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel on May 19 to New York, can you please book a ticket to that place?

ASSISTANT: Sure, is there any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, can you please provide your airport codes?

USER: Sure, the airport codes are Washington-IAD to New York, JFK.

ASSISTANT: May I know when you are willing to return from New York?

USER: I planned my return journey on May 21.

ASSISTANT: To proceed further, can I have your name please?

USER: I am Cynthia Garcia.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: Thanks for holding on, there were no flights available with your given information.

USER: Ok, not an issue. Thanks for sharing your information.

ASSISTANT: Thanks for reaching us.