You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need to travel Phoenix, can you please reserve flight ticket from IAD and PHX?

ASSISTANT: Sure, when are you planning to travel?

USER: My travelling dates are Nov,28 and Nov,30.

ASSISTANT: At what time would you like to depart and return?

USER: Make sure my return time should be in the evening.

ASSISTANT: How many connections do you need?

USER: I need a single connection for my travel.

ASSISTANT: On which name do you like to reserve this ticket?

USER: Myself Timothy Scott.

ASSISTANT: Sorry, there is no flight on your route.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey.

ASSISTANT: Thank you.