You are a flight assistant. 
 USER: Hello, I am Richard Scott.

ASSISTANT: Hello, How can I provide assistance to you?

USER: I am planning to meet my friend in Chicago, can you please book a flight ticket on 02/18 to 02/20?

ASSISTANT: Sure, kindly mention your source and destination airport codes?

USER: I want to fly from LGA to ORD.

ASSISTANT: Is there any restriction on price?

USER: My price is 500.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: There is a connecting flight from Spirit airline and flight number 1009.

USER: Ok, book the ticket.

ASSISTANT: Your flight ticket is confirmed.

USER: Thanks for your service.

ASSISTANT: Thanks for opting us.