You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Karen Walker.

ASSISTANT: Ok.

USER: I am planning to attend my cousin wedding in Denver, so please help me in booking a flight ticket.

ASSISTANT: Sure, may I know when you are willing to travel?

USER: I want to fly on 03/17 and return on 03/19.

ASSISTANT: Could you please help me with your airport codes?

USER: My source is Seattle, WA - SEA and destination code is CO - DEN.

ASSISTANT: How much you can afford for the ticket?

USER: I can afford up to 200.

ASSISTANT: There is a Frontier 1027 airline with fare of 100 which matches your travelling dates. Shall I proceed with booking?

USER: You can proceed to booking.

ASSISTANT: Your booking has been confirmed on name of Karen Walker.

USER: Thank you for your help.

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