You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I hand help to you?

USER: I am Steven Lee. I need to book a ticket to meet my friend on an event which is organised by parents but I should be volunteer that event. Can you please book me a ticket from SFO to DTW?

ASSISTANT: Sure, I will help you. May I know the dates for your journey?

USER: I would like to move on 05/07 and return on 05/09.

ASSISTANT: Please give me a moment to find the flight.

USER: Ok. I will wait.

ASSISTANT: Is there any connection limit that you are preferring?

USER: I need a halt in between my journey.

ASSISTANT: With your request, there is no flight found on the mentioned dates with a connection flight.

USER: That's not a problem, I will choose anther way. Thank you so much for your response.

ASSISTANT: It's my pleasure and have a nice day.