You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand?

USER: I would like to travel from DFW to PHX as a holiday trip.

ASSISTANT: Ok.

USER: Can you do the reservation?

ASSISTANT: Sure. May I know, when you are planning to depart?

USER: I need to fly on 01/19.

ASSISTANT: How much you can afford for this journey?

USER: Price should not cross 200.

ASSISTANT: Kindly, share your return date of journey to proceed further.

USER: My return date is 01/21.

ASSISTANT: Please, wait for a moment.

USER: Ok.

ASSISTANT: Thank you for being patience, there is a flight available in UA airline, flight number 1027 having fare 100 and a lay by.

USER: Please do the booking.

ASSISTANT: I need your name to confirm booking.

USER: Emma Allen here.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.