You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Angela Perez here. I am planning to book my ticket from DTW to SFO. Can you please help me with booking the flight ticket?

ASSISTANT: Ok, may I know your travelling dates?

USER: My journey dates are June 08 and June 10.

ASSISTANT: Sorry, no flights found on your route.

USER: Not an issue, anyway thank you for the information. Thank you for your service.

ASSISTANT: Thank you for reaching us.