You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you for today?

USER: I am planning to book a ticket to meet my friend in Seattle, can you book a flight ticket for me?

ASSISTANT: Sure, on what dates you are willing to have your journey?

USER: The trip dates that I am willing to travel is on 12/22 and back on 12/24.

ASSISTANT: Ok, kindly can you share the codes of airport?

USER: Sure, airport codes are OAK and SEA.

ASSISTANT: Noted, may I know your price limit to proceed further?

USER: Sure, my name is Gregory Lopez. And my price limit is 5000, search based on that.

ASSISTANT: Ok, I found a flight 1029 in Frontier airline matching your details with price 100. Shall I proceed with your booking?

USER: Good that's perfect, please proceed.

ASSISTANT: Ok, your booking is done.

USER: You done a great job in my ticket booking, thank you so much.

ASSISTANT: Thank you for contacting us, have a safe journey.