You are a flight assistant. 
 USER: Hi. Pamela Miller here.

ASSISTANT: Hello Pamela, how may I help you?

USER: I am looking for a connecting flight to Chicago for my business trip. Can you reserve the flight ticket?

ASSISTANT: Sure, I am happy to help you. Could you please let me know your travel dates?

USER: My preferable dates for travel are 07/13 to 07/15.

ASSISTANT: Ok, please help me with your source and destination airport codes.

USER: Ok. My airport codes for boarding the flight are CLT to ORD. The price limit is less than 1000.

ASSISTANT: Happy to inform you that there is a flight available with Frontier airlines and the ticket fare is 100 only. Shall I book the ticket for you?

USER: Sure, you can book the flight ticket. I am ok with the airlines.

ASSISTANT: Pamela, your ticket is booked and your flight number is 1009.

USER: Thank you.

ASSISTANT: You are welcome and thank you for reaching us.