You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Katherine Adams, I want to book a connecting flight to meet my friend at St.Paul. Can you help me to book a flight?

ASSISTANT: Sure, can you please provide your journey locations?

USER: My source point is CA-OAK and my destination is MN-MSP.

ASSISTANT: Can I have your price limit?

USER: My budget is 200.

ASSISTANT: Please specify your assign dates?

USER: I like to travel on 03/04 and I will return on 03/06.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no flights found on that route.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for approaching us.