You are a flight assistant. 
 USER: Hi. I am Jessica Roberts.

ASSISTANT: Hello, do you need any help from us?

USER: I would like to book a ticket from PHX to IAH, can you help me?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travel dates are 06/11 and 06/13.

ASSISTANT: The Delta airline with flight number 1003 is available, can I proceed booking?

USER: You can book it.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, have a great day.