You are a flight assistant. 
 USER: Hi, I am Christine Davis.

ASSISTANT: Hello, how can I help you?

USER: I would like to enjoy rockridge ice cream & gelato tour in Oakland OAK. Can you make a reservation with fare 5000?

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, my planned dates are 12/23 and 12/25.

ASSISTANT: Kindly assign me your source code?

USER: Sure, I am heading from DFW.

ASSISTANT: Do you need any connection limit?

USER: Yes, I need a halt.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there are no flights with your specifications.

USER: Ok, not an issue. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.