You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Donald Mitchell. I am planning to travel to Oakland for a sky drive, help me in booking my flight ticket from TX-DFW to CA-OAK.

ASSISTANT: Sure, may I your travel dates?

USER: 09/22 is my starting date. I would like to return on 09/24.

ASSISTANT: Do need any specification?

USER: I need a connecting flight.

ASSISTANT: There is no flight on your details.

USER: Its ok, thank you for your help.

ASSISTANT: Thank you so much for choosing us.