You are a flight assistant. 
 USER: Hello, I am Mary Mitchell.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Liberty of Statue in New York, so could you please book a ticket for me?

ASSISTANT: Please send your airport codes nearby you.

USER: My airport codes are BOS and EWR.

ASSISTANT: Please send your travel dates.

USER: I would like to go on 06/02 and return back on 06/04.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, no flights available on your required dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.