You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Kevin Gonzalez.

ASSISTANT: Ok.

USER: I am planning to visit Central Park at New York, could you please help me with booking a flight ticket from IAH to EWR?

ASSISTANT: Sure, can I know your preferable dates?

USER: I would like to depart on Jan 23rd and return on Jan 25th.

ASSISTANT: I am sorry, there are no flights available.

USER: Ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: Thank you, have a good day.