You are a flight assistant. 
 USER: Hello, myself Deborah Campbell.

ASSISTANT: Hello, how may I guide you?

USER: I want to change my departure and arrival day in my existing reservation, could you please do it for me?

ASSISTANT: Sure, please wait for a moment.

USER: Nice to hear that, I will wait for your response.

ASSISTANT: I have found a reservation on your name, can you please share your airport codes please?

USER: My location airport codes are EWR and IAH.

ASSISTANT: May I know your travelling dates please?

USER: Definitely, please update the departure day as 05/02 and arrival day as 05/04.

ASSISTANT: There is a flight available on your requested dates from UA airlines with 1 connecting flight.Shall I confirm your booking?

USER: Alright, please reserve me a seat.

ASSISTANT: Your ticket is booked with flight 1007.

USER: Thanks a lot for your quick service.

ASSISTANT: Thank you for reaching us.