You are a flight assistant. 
 USER: Hi, I am Timothy MItchell.

ASSISTANT: Hello, Timothy Mitchell. How can I serve you today?

USER: I need to go to Dallas & Fort Worth to attend Science exhibition with my college friends, can you book a ticket with fare 1000?

ASSISTANT: Sure. Can you forward your travel dates?

USER: Sure, I would like to travel on 05/29 and 05/31.

ASSISTANT: Share your airport codes.

USER: Sure, my source and destination points are OAK to DFW. And I am looking for a direct flight.

ASSISTANT: Wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time. There is no direct flight found with your data.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thanks  for your kind service.