You are a flight assistant. 
 USER: Hi. Nicholas Hill here.

ASSISTANT: Hello.

USER: Can you book a round trip to Seattle for my family vacation?

ASSISTANT: How may I aid you? Sure, I will help you with that. May I know your airport code please?

USER: My airport codes for boarding the flight are SEA to SEA.

ASSISTANT: Ok, please share your travel dates.

USER: My preferable dates for travel are 06/11 to 06/13.

ASSISTANT: Frontier airlines is having a connecting flight with a fare of 100, shall I proceed with booking?

USER: I am fine with the airlines. You can book it.

ASSISTANT: Your ticket is confirned with the flight-1009.

USER: Thank you.

ASSISTANT: Welcome, have a safe journey.