You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Pamela Harris here.

ASSISTANT: How can I serve you?

USER: Could you book my ticket in a connecting flight?

ASSISTANT: Sure. Can I know your travelling dates?

USER: My trip dates are Aug 21 and Aug 23.

ASSISTANT: Please share me your source and destination airport codes.

USER: I will be travelling from IAH to DTW.

ASSISTANT: Give  me a minute.

USER: Ok.

ASSISTANT: We found a Frontier airline, flight number:1020 and the price is 300.

USER: Please book my ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.