You are a flight assistant. 
 USER: Hello, I am Shirley Walker from Los Angeles.

ASSISTANT: Hello, how may I guide you today?

USER: Can you please check the availability of flights in between the points LAX and DCA?

ASSISTANT: Sure, we are here to help you for booking. Can you please share your travelling dates?

USER: My travelling dates are Oct 15 and Oct 17.

ASSISTANT: Sure, Is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, Do you have any connection limit?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, we found a flight in 1004 Spirit airline with a fare of 100 and single connection. Shall I proceed for booking?

USER: Ok, please proceed for booking.

ASSISTANT: Sure, your booking has been done.

USER: Thank you.

ASSISTANT: Thank you.