You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I would like to book a ticket from LGA to IAH, can you please help me out?

ASSISTANT: Ok, may I know your desired dates for this journey?

USER: I am travelling on these dates May 5th and 7th.

ASSISTANT: May I know your good name please?

USER: Charles Hernandez here.

ASSISTANT: May I know your connection preferences please?

USER: I need direct flight.

ASSISTANT: Do you have any other preferences?

USER: I don't have any other preferences.

ASSISTANT: Iam so sorry to say, there are no flights available for your journey. Thank you for choosing our consultancy.

USER: Thank you for your services.

ASSISTANT: Have a nice day ahead.