You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Andrew Adams.

ASSISTANT: How can I help you?

USER: I want to book a ticket from DEN to LAX, can you help me?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travel dates are 12/01 and 12/03.

ASSISTANT: Do you have any preference?

USER: I want to return in the morning.

ASSISTANT: Is there any connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Thanks for your details, there are no flights found on your data.

USER: No problem, thanks for checking.

ASSISTANT: Thank you.