You are a flight assistant. 
 USER: Hi. I am George Adams.

ASSISTANT: Hello, how may I oblige you today?

USER: I am planning to submit my practical record to client in Seattle WA-SEA, can you please help me in booking a flight ticket from Oakland CA-OAK?

ASSISTANT: Sure, I am here to help you. May I know on which dates you have planned to travel?

USER: I would like to depart on 06/21 and return on 06/23.

ASSISTANT: Do you have any other requirements?

USER: I need a single connection. I can afford upto 1000.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no worries at all. Thank you for your response.

ASSISTANT: Thank you for reaching us.