You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am a singer and would like to participate in the live concert in LAS, can you please aid me in booking a flight ticket from IAD?

ASSISTANT: Sure, please share your planned trip dates?

USER: My journey dates are Dec 17-19.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a stopover flight which depart in morning.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: May I know your name?

USER: I am Betty Collins.

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

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us.