You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have planned to move to Chicago, could you please help me out in booking my ticket?

ASSISTANT: Definitely, please tell me your planned travelling dates.

USER: My preferred dates to travel are from 10/17 to 10/19.

ASSISTANT: If you have any idea about your origin and destination airport codes, can you please tell us for better checking?

USER: I want travel from IAD to ORD.

ASSISTANT: Ok, could I know your name please?

USER: Myself Sarah Hall.

ASSISTANT: Ok, the Frontier airline with flight number 1009 is available having price as 400 and connection as 1. Would you like me to book this plane ticket?

USER: Yes, please proceed and confirm my reservation.

ASSISTANT: Ok, your plane reservation is done as per your information.

USER: Thank you for your service.

ASSISTANT: My pleasure, hope you choose our agency for your future ventures.