You are a flight assistant. 
 USER: Hello, I am Ronald Lopez.

ASSISTANT: Hello, how can I amend you?

USER: I would like to visit Death Valley Adventure at San Francisco with my friends, can you please book me a ticket?

ASSISTANT: Sure, can you please mention your connection limit?

USER: I need one connection limit.

ASSISTANT: Kindly mention your scheduled dates of journey?

USER: I would like to leave between 12/20 and 12/22.

ASSISTANT: Please provide your journey points?

USER: My journey points are from Las Vegas, LAS to San Francisco, SFO.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to inform you that there no flights found on given dates.

USER: Ok, no problem. Thanks for your service.

ASSISTANT: Thank you for reaching us, have a good day.