You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Margaret Garcia. I would like to book a flight ticket from PHX to IAH to meet my friends. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, when would you like to travel?

USER: I want to travel on dates Mar 4 and Mar 6.

ASSISTANT: Do you have any preferences?

USER: Yes,I want to return in the evening.

ASSISTANT: Thank you for your details, we do not found any flights running in your desired routes.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.