You are a flight assistant. 
 USER: Hello, David Martinez here.

ASSISTANT: Hello, what can I do for you?

USER: I have planned to participate in Olympics at New York, Can you please book a ticket on 03/03?

ASSISTANT: Ok. May I know where are you heading from?

USER: Sure, I am heading from Phoenix, AZ - PHX.

ASSISTANT: Do you need any connections with in your route?

USER: Sure, I need a connection.

ASSISTANT: When would you like to return?

USER: I intend to return on 03/05.

ASSISTANT: Can you provide me your destination airport code?

USER: My destination airport code is NY - JFK.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for being patient. There are no flights available for your requested dates.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for consulting us.