You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, how can I render you today?

USER: Christine Perez here.

ASSISTANT: Ok.

USER: Can you please help me in reserving my flight from PHX to reach IAH?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Let me know your connection limit.

USER: I need a single connecting flight.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I prefer economy class.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My planned travel dates are Aug 13th and 15th.

ASSISTANT: Do you have any other requirements?

USER: My depart time must be in the evening.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok, sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, not a problem. Anyways, thank you.

ASSISTANT: Thank you for choosing us.