You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emily Carter.

ASSISTANT: Emily Carter. How can I help you?

USER: Please help me in booking a flight ticket in my preferable travel dates July, 3 and July, 5.

ASSISTANT: May I know your airport codes?

USER: DEN and SFO are my respective airport codes.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Frontier Airlines with flight 1008 is providing service on your route.

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for approaching us.