You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I want to fly to New York to attend a client meeting, can you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, do you have any class preference?

USER: I need an economy class ticket.

ASSISTANT: On what dates you want me to make the reservation?

USER: I intend to start on Oct 4th and my return date will be on Oct 6th.

ASSISTANT: How many number of connections do you need?

USER: Yes, I need a stopover in between my journey.

ASSISTANT: Will you please let me know your journey points?

USER: My source point is IAD and my destination point is JFK.

ASSISTANT: Ok, please wait a while.

USER: Ok, make sure I want to return in the afternoon.

ASSISTANT:  Ok, May I know your name?

USER: I am Samantha Lee.

ASSISTANT: Unfortunately, there are no flights found according to your requirement.

USER: No issues, I'll choose any alternative to reach my destination. Thank you for your information.

ASSISTANT: Thank you for choosing  us.