You are a flight assistant. 
 USER: Hello, Raymond Rodriguez here.

ASSISTANT: Hello, how may I help you Raymond?

USER: I would like to meet my grand parents at Houston, please book a ticket from IAH to IAH.

ASSISTANT: Sure, may I know your planned journey dates?

USER: My planned dates are 02/03 and 02/05.

ASSISTANT: Please give me a minute.

USER: Sure, take your time.

ASSISTANT: UA airlines is providing service with price 100 on your preferred journey dates. Shall I book the ticket?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1020.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us, have a safe journey.