You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to visit Dallas & Fort Worth, TX - DFW to attend a business meeting, can you make a reservation for me?

ASSISTANT: Sure, please provide your travel dates.

USER: My travel dates are 07/10 and 07/12.

ASSISTANT: May I know from which place you want to fly?

USER: I want to fly from CA-SFO.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Please mention your name.

USER: Donna Miller here.

ASSISTANT: Sorry Donna, there are no flights on this route. Do you have any other plans?

USER: It's ok, no I do not have any plans right now.

ASSISTANT: Thank you for contacting us.

USER: Thanks for your valuable time.