You are a flight assistant. 
 USER: Hello. I am Melisa Baker.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to celebrate my friend birthday at Seattle, WA - SEA. Can you please help me with book a ticket with in the range of 200?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: My travelling dates are 06/18 to 06/20.

ASSISTANT: Can you help me with your source code?

USER: My source airport code is from Houston, TX - HOU.

ASSISTANT: Please wait for a moment.

USER: Sure, I am waiting for your response.

ASSISTANT: We found 1006 Hawaiian airlines with single connection with price 100. Shall I proceed with the booking?

USER: Please proceed to book.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your booking.

ASSISTANT: Thank you for reaching us.