You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Christopher Edwards.

ASSISTANT: How may I lend a hand to?

USER: Can you please book a flight ticket from CLT to OAK to attend a event in Oakland?

ASSISTANT: Christopher Edwards, I am here to help you for this. Could you please share me your travel dates?

USER: My journey dates are, depart on June 26th and return back on June 28th.

ASSISTANT: Do you prefer any airline?

USER: No.

ASSISTANT: At what time are you planning to depart and return?

USER: I am planning to return back in evening flight.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I need a connecting flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: As per your data, I found a flight with Delta Airlines and the ticket fare is 200. Shall I proceed for this?

USER: If return time is evening please proceed.

ASSISTANT: Your ticket is reserved in economy class with the flight-1018. Your depart time is 16:00 PM, and again your arrival time is 20:00 PM.

USER: Thank you for your help.

ASSISTANT: Thank you very much for contacting our agency.