You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Raymond Jackson.

ASSISTANT: How can I support you?

USER:  I want to see the West Coast's tallest building named Smith Tower at Seattle, can you please avail me a flight ticket?

ASSISTANT: Sure, I am perky to help you. Help me with your airport codes?

USER: I would like to board from IAD to reach SEA.

ASSISTANT: May I know your planned dates?

USER: My planned dates are from 07/24 to 07/26.

ASSISTANT: Do you have any requirement?

USER: I need a connecting flight. Price limit is 200.

ASSISTANT: There is a Frontier airline with flight number 1007 and fare 100. Shall I go with booking?

USER: Yes, you can proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.