You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dennis Lopez here.

ASSISTANT: How can I help you?

USER: I want to reserve my ticket from PHX to AUS, can you please help me out?

ASSISTANT: Can I know your travel dates?

USER: Sure, my planned dates of journey are from Oct, 21 to Oct, 23.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a depart and return timing at morning.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Sorry, I did not find any flights for you.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for reaching us.