You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me to book a ticket from SEA to IAH?

ASSISTANT: Sure, can you mention your connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Any other requirement to be met?

USER: No.

ASSISTANT: Do let me your travel dates please?

USER: My travelling dates will be on May 21 to May 23.

ASSISTANT: Can you share your name to proceed further?

USER: Carolyn King here.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry, no flights found with your requirement.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for contacting us.