You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a flight ticket from MSP to LAX. Can you please help me in that?

ASSISTANT: Sure, may I know your travelling dates.

USER: My trip dates are Dec 13 to 15.

ASSISTANT: Do you need any connecting flights?

USER: I need a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: I need to travel in normal cost.

ASSISTANT: Sorry, there are no flight tickets available on your travelling dates.

USER: Ok, no problem. Thank you.

ASSISTANT: May I know your name for our documentation purpose.

USER: Myself Donald Edwards.

ASSISTANT: Thank you for reaching our service.