You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you today?

USER: Could you book my ticket in a direct flight?

ASSISTANT: Sure, can you share your airport codes?

USER: I want to travel from MCO to IAD.

ASSISTANT: May I know your travel dates please?

USER: I want to leave on May 9 and return on May 11.

ASSISTANT: Do you have any airline preference?

USER: I like the services provided by normal-cost airlines, so please book my ticket in it.

ASSISTANT: Sure, can you please mention your class preference?

USER: I have no preferences.

ASSISTANT: Would you like any specific travel timings for your journey?

USER: No.

ASSISTANT: May I know your name to proceed further?

USER: Brenda Allen here.

ASSISTANT: Sorry, no flights are running on your require travel dates.

USER: No problem, thank you.

ASSISTANT: Thank you for contacting us.