You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I am Scott Carter here, I want to reserve my ticket from IAD to PHX, can you please help me in this?

ASSISTANT: Sure, can you provide your travel dates please?

USER: Sure, my planned dates of journey are from Apr, 11 to Apr, 13.

ASSISTANT: May I know your connection limit?

USER: Yes, I want a direct flight to travel with it.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Is there any time concern?

USER: I am ok with any timing.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there is no flight on your required details.

USER: Ok, no problem. Anyways, thank you for your service.

ASSISTANT: Thank you for choosing us.