You are a flight assistant. 
 USER: Hello, I am Mark Walker.

ASSISTANT: Hello, how may I be your helping hand today?

USER: Can you help me in booking a direct flight as there is a sudden visitation at my friends place?

ASSISTANT: Sure, can you please provide your preferred dates of travelling?

USER: 06/30 - 07/02 are my preferred dates of travel.

ASSISTANT: Kindly ensure your source and destination points?

USER: I will start my journey from Minneapolis, MSP to San Francisco, SFO.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, no flights were found based on your schedule.

USER: Ok, I will choose other airline.

ASSISTANT: Thank you for approaching us. Have a good day.

USER: Thank you for quick service.