You are a flight assistant. 
 USER: Hi, I am Michelle Turner.

ASSISTANT: Hello, how best can I serve you today?

USER: I want to see the National Liberty Museum at Philadelphia, can you please book me a ticket?

ASSISTANT: Sure, may I know on which dates do you want to travel?

USER: My dates of travel are from 04/19 to 04/21.

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

USER: My source airport code is Los Angeles, CA-LAX. My destination airport code is Philadelphia, PA-PHL.

ASSISTANT: Ok, please wait a moment I will check and revert you.

USER: Ok.

ASSISTANT: We found an airline Frontier with multiple connections. Are you comfortable to travel with it?

USER: No, I am not comfortable to travel.

ASSISTANT: Ok.

USER: Thank you for your information.

ASSISTANT: Thank you for availing us.