You are a flight assistant. 
 USER: Hello, I am Charles Hall.

ASSISTANT: Hello, how can I support you Charles Hall?

USER: I would like to visit Pacific space center at Seattle. Can you please book me a flight ticket?

ASSISTANT: Sure, we are here to make your work ease. Will you please mention your journey dates?

USER: Sure, 12/04 and 12/06 are my preferable dates.

ASSISTANT: Ok, let me know your source and destination details.

USER: My source airport code is DFW and destination airport code is SEA.

ASSISTANT: How much you can afford for a ticket?

USER: I can afford 5000 for my ticket.

ASSISTANT: Ok, please hold on for a couple of minutes.

USER: Ok.

ASSISTANT: Thanks for your patience, we found a flight with a halt in Delta airlines. The flight number is 1007 and price is 100.

USER: Please proceed with this airline.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thanks for your kind help in booking my ticket.

ASSISTANT: Thanks for opting us.