You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Catherine Mitchell. I have a client meeting at Oakland this weekend. Can you please help me in reserving the ticket from DEN to OAK?

ASSISTANT: Sure, I will help you. When would you like to plan your journey?

USER: I am planning my holiday trip on July 6, and again I will retrieve on July 8.

ASSISTANT: May I know your connection preference?

USER: I am flexible with single connection.

ASSISTANT: May I know your departure and arrival timings?

USER: My return time is evening.

ASSISTANT: Do you have any other preferences?

USER: No, I don't have any other requirements.

ASSISTANT: I found an economy class in Spirit airlines with fare 200 and it is a connecting flight. Can I book your ticket?

USER: Yes, I think that can work for me. Please go ahead and reserve the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1021.

USER: Thank you very much for reserving the ticket.

ASSISTANT: Thank you for choosing us.

USER: You are most welcome.