You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: I am Pamela Mitchell. Can you please book a flight ticket from DTW to LAX?

ASSISTANT: Sure, I am here to help you with the ticket booking. Can I know your travel dates?

USER: Sure, I need to travel on dates of Oct 05 and Oct 07.

ASSISTANT: Do you have any particular timings to depart and return?

USER: Yes, I would like to return in evening time so please check with that.

ASSISTANT: Ok, do you have any other preferences?

USER: I am looking for single connecting flight.

ASSISTANT: Ok, please wait a minute.

USER: Sure, take your time.

ASSISTANT: Sorry to intimate you that, there is no flight which is returning in the evening time on the dates you have given.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: You are most welcome. Thank you for choosing us.