You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Raymond Perez here. I want to travel in a direct flight from IAH to EWR, can you please help me with that?

ASSISTANT: On which dates your travelling dates please.

USER: The travel dates are from 01/16 to 01/18.

ASSISTANT: I am sorry no flights found on your travel dates.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for choosing us.