You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight from PHL to IAH, can you help me?

ASSISTANT: Sure, may I know your name please to proceed further?

USER: Myself Andrew Nelson.

ASSISTANT: Please provide me your journey dates for better search.

USER: I will be travelling from 06/16 and returning on 06/18 form this trip.

ASSISTANT: Please give me a minute.

USER: Ok, take your time.

ASSISTANT: I found a flight with Frontier airlines available with price 100. Shall I book the ticket?

USER: Ok, please book it for my journey.

ASSISTANT: Your ticket is confirmed and the flight number is 1022.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.