You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carolyn Garcia.

ASSISTANT: How can I help you today?

USER: I need to book a flight ticket from DTW to SFO, Can you please help me for booking?

ASSISTANT: Sure, can you share me your travelling dates?

USER: I would like to travel on 04/17 to return on 04/19.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any time concern?

USER: Yes, I would be return on evening.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are found on your name in our records.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.