You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am Amanda Mitchell, have a plan to San Francisco. I have to attend to my cousins birthday party at SFO, can you please book a ticket for me?

ASSISTANT: Sure, may I know your journey dates?

USER: I would like to travel from 05/17 to 05/19.

ASSISTANT: To proceed booking I need your source code.

USER: I will start from DFW. Please make sure to check with one connection limit. And the price is 1000.

ASSISTANT: Thanks for waiting, there is no connecting flight available.

USER: Ok, Thanks for sharing information.

ASSISTANT: Thank you.