You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I am Carolyn Mitchell want to book a flight ticket from Philadelphia to Washington, so can you please book me a flight on dates 09/05 and 09/07?

ASSISTANT: Sure, please share your airport codes?

USER: Sure, my airport codes are PA-PHL and DC-IAD.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connection in between the journey.

ASSISTANT: Ok, let me check the availability and get back to you.

USER: Ok.

ASSISTANT: We found Frontier airline with flight number 1011. Price 100 with a single connection. Shall I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: thank you for connecting with us.