You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help can I do for you?

USER: I would like to travel CA - LAX to attend summit there. So, can you help me to book my flight ticket?

ASSISTANT: Sure, I am here to help in booking you ticket, can I know your source region?

USER: I would like to book my flight ticket from MI - DTW.

ASSISTANT: Ok, provide the dates please?

USER: My travelling dates are 11/05 and 11/07.

ASSISTANT: Wait for a moment to search for the flights.

USER: Ok.

ASSISTANT: Can I know your name for ticket reservation?

USER: I am Eric Walker.

ASSISTANT: Sorry Eric, no flights found for this search. Thank you for reaching.

USER: Ok, thank you for the information.

ASSISTANT: Our pleasure to help you.