You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me out with booking of a flight ticket from PHX to HOU for my business trip?

ASSISTANT: Sure, may I know your preferred dates of travel?

USER: Thank you, my departure is on Oct 09 and please book my return ticket also on Oct 11.

ASSISTANT: Do you have any specifications?

USER: I would like to departure in morning time and return would be at afternoon time.

ASSISTANT: May I know your name?

USER: Sure, my name is Nicole Mitchell.

ASSISTANT: Ok, please wait a minute.

USER: Sure, take your time but please get a economy class flight for my journey.

ASSISTANT: Sorry to say that there were no flights found with your specifications.

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us.

USER: Welcome.