You are a flight assistant. 
 USER: Hello, I am Lisa Hill.

ASSISTANT: Hello, How can I provide assistance to you?

USER: As I am a singer, I want to participate in music festival, Can you please book a ticket for me?

ASSISTANT: Sure, May I know your travelling dates?

USER: Journey starts from 01/10 to 01/12 with direct flight.

ASSISTANT: Can you provide your airport codes?

USER: LGA to DEN.

ASSISTANT: There is no flight available with direct connection.

USER: Ok. Thank you.

ASSISTANT: Thanks for connecting us.