You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Charles Hill. I want to visit Philadelphia to meet my friend, can you please help me in booking a flight ticket?

ASSISTANT: Sure, can you please let me know your airport codes?

USER: My airport codes are from ORD to PHL.

ASSISTANT: Ok, can you please provide me your travel dates?

USER: My travelling dates are from 05/27 till 05/29.

ASSISTANT: Ok, please be on hold for a moment.

USER: Ok, take your time.

ASSISTANT:  Happy to inform you, there is a flight-1010 available with UA airlines and the ticket fare is 100 only. Shall I book the ticket?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed successfully and have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.