You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to travel from DEN to SEA. Can you help me to book a flight ticket?

ASSISTANT: Sure, can you please share me your travelling dates?

USER: I want to travel in the flight on June 13 and June 15.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a direct flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Emma Edwards.

ASSISTANT: Sorry, there were no flights with your given details.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for reaching us.