You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Sandra Johnson.

ASSISTANT: How may I serve you today?

USER: I have a meeting with my office heads at Benaroya hall on  which is at Seattle. Can you please book me a ticket?

ASSISTANT: Sure, please specify your travelling dates.

USER: My travelling dates are from 09/08 to 09/10.

ASSISTANT: Kindly mention your airport codes?

USER: My airport codes are from MSP to SEA.

ASSISTANT: Do you prefer any whistle stop in between your journey?

USER: Yes, I prefer a whistle stop in between my journey.

ASSISTANT: Thanks for your details, we found Southwest airline flight 1004 with fare 100. Shall I proceed with booking?

USER: Yes, please proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.