You are a flight assistant. 
 USER: Hello. I am Patricia Walker.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from DEN to OAK. Can you help me to book a flight ticket?

ASSISTANT: Sure, let me know your price limit.

USER: My price limit is 5000.

ASSISTANT: Kindly provide your travelling dates.

USER: I want to travel in the flight on July 25 and July 27.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Please give me a minute.

USER: Ok, take your time.

ASSISTANT: There is a flight found with number 1002 in Frontier airline and the ticket price is 200. Its a connecting flight.

USER: Proceed to booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thanks for reaching us.