You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I want to attend a Seminar in New York. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My travelling dates are Jan 18 and Jan 20.

ASSISTANT: Can you please mention your source and destination airport codes?

USER: My airport codes are PHX and LGA.

ASSISTANT: May I know your name please?

USER: My name is William Brown.

ASSISTANT: Do you have any connection limit?

USER: I prefer single connecting flight.

ASSISTANT: Is there any specifications?

USER: I want to departure on morning.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.