You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Elizabeth Williams here.

ASSISTANT: How may I serve you at this moment?

USER: Can you please reserve me a flight from SFO to reach DTW?

ASSISTANT: Sure, do you need any stop over in between the journey?

USER: I need a single stop over.

ASSISTANT: Ok, provide your travelling dates.

USER: My planned travel dates are Jan 16th and 18th.

ASSISTANT: Ok, do you have any other requirements.

USER: My depart time must be in the afternoon.

ASSISTANT: We found a AA airline with fare of 400 and a stop over in between the journey matches your schedule.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1009.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.